30
12-1 Sutherland’s 7th Edition CHAPTER 12 Chapter 12 Table of Contents Threaded Standard Illustrations & Dimensions 12-8–12-9 Recent Models, Stack Heights 12-10–12-11 Threadless Standard Illustrations & Dimensions 12-12–12-13 Recent Models, Stack Heights 12-14–12-17 Threadless Low-Profile Illustrations & Dimensions 12-18–12-19 Recent Models, Stack Heights 12-19 Threadless Integrated Illustrations & Dimensions 12-20–12-21 Recent Models, Stack Heights 12-22–12-23 Threadless Semi-Integrated Illustrations & Dimensions 12-24–12-25 Recent Models, Stack Heights 12-26–12-27 Threaded Semi-Integrated Illustrations & Dimensions 12-28–12-29 Recent Models, Stack Heights 12-29 Headset Identification Visual Cues & Notes 12-2–12-3 Summary of Headset Types 12-4–12-5 Headset Fit Headset Fit to Frame & Fork 12-6 Steerer Tube & Crown Race Diameters 12-6 Headset to Head Tube Fit, Common Types 12-7 Integrated Headset Head Tube Fit 12-7 HEADSETS

Chapter12 Headsets

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Page 1: Chapter12 Headsets

12-1Sutherland’s 7th Edition

CHAPTER 12Chapter 12 Table of Contents

Threaded Standard

Illustrations & Dimensions 12-8–12-9

Recent Models, Stack Heights 12-10–12-11

Threadless Standard

Illustrations & Dimensions 12-12–12-13

Recent Models, Stack Heights 12-14–12-17

Threadless Low-Profile

Illustrations & Dimensions 12-18–12-19

Recent Models, Stack Heights 12-19

Threadless Integrated

Illustrations & Dimensions 12-20–12-21

Recent Models, Stack Heights 12-22–12-23

Threadless Semi-Integrated

Illustrations & Dimensions 12-24–12-25

Recent Models, Stack Heights 12-26–12-27

Threaded Semi-Integrated

Illustrations & Dimensions 12-28–12-29

Recent Models, Stack Heights 12-29

Headset Identification

Visual Cues & Notes 12-2–12-3

Summary of Headset Types 12-4–12-5

Headset Fit

Headset Fit to Frame & Fork 12-6

Steerer Tube & Crown Race Diameters 12-6

Headset to Head Tube Fit, Common Types 12-7

Integrated Headset Head Tube Fit 12-7

HEADSETS

12heaA_8Pc_df.indd 1 8/20/04 11:01:29 AM

Page 2: Chapter12 Headsets

12-2 Sutherland’s 7th Edition 12-3Sutherland’s 7th Edition

HEADSETS

CHAPTER 12

HEADSETS

CHAPTER 12Headset Identification Headset Identification (continued)

(continued)

Threaded Standard

Threadless Standard

Threadless Low-Profile

Common versionsCampagnolo, Tange, Shimano, etc.

Common versions AheadSet, Cane Creek

Common versionsColumbus, Intellaset, Slimstak

Available sizes 1", 11⁄8", 1¼"

Available sizes1", 11⁄8", 1¼", 1.5"

Available sizes1", 11⁄8"

Notes Quickly becoming rare on newer bicycles. Principally found on older or “city” bikes.

Notes Most popular system. 1.5" is newest size. Cannondale was first to use this, but made a running change to a “final” standard with a deeper head tube bore (25.4 mm versus 11 mm ream depth). On Cannon-dales, carefully match stem to steerer diameter, as there may be some nonstandard diameters.

Notes Idea being promoted by Columbus. It combines the simplicity of external cups with a low-profile look. A larger diameter head tube is required than with a traditional threadless headset.

More details Page 12-8

More detailsPage 12-12

More detailsPage 12-18

VISUAL CUES & NOTES VISUAL CUES & NOTES (continued)

Threadless Integrated

Threadless Semi-Integrated

Threaded Semi-Integrated

Common versions Integrated System (Cane Creek) Hiddenset (Campagnolo)

Common versions Zero Stack (Cane Creek) Perdido (Chris King)

Common versions Not common

Available sizes1", 11⁄8"

Available sizes 1", 11⁄8"

Available sizes11⁄8"

NotesThe Cane Creek standard is predominant.The Campagnolo standard is also used. Other standards are quite rare.

Notes The Cane Creek standard is almost universally used. Other standards exist, but are quite rare.

NotesFound on some Giant bicycles.Mainly an OE (original equipment) specification for European style city bikes.

More detailsPage 12-20

More detailsPage 12-24

More detailsPage 12-28

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12heaA_8Pc_df.indd 2-3 8/20/04 11:01:30 AM

Page 3: Chapter12 Headsets

12-2 Sutherland’s 7th Edition 12-3Sutherland’s 7th Edition

HEADSETS

CHAPTER 12

HEADSETS

CHAPTER 12Headset Identification Headset Identification (continued)

(continued)

Threaded Standard

Threadless Standard

Threadless Low-Profile

Common versionsCampagnolo, Tange, Shimano, etc.

Common versions AheadSet, Cane Creek

Common versionsColumbus, Intellaset, Slimstak

Available sizes 1", 11⁄8", 1¼"

Available sizes1", 11⁄8", 1¼", 1.5"

Available sizes1", 11⁄8"

Notes Quickly becoming rare on newer bicycles. Principally found on older or “city” bikes.

Notes Most popular system. 1.5" is newest size. Cannondale was first to use this, but made a running change to a “final” standard with a deeper head tube bore (25.4 mm versus 11 mm ream depth). On Cannon-dales, carefully match stem to steerer diameter, as there may be some nonstandard diameters.

Notes Idea being promoted by Columbus. It combines the simplicity of external cups with a low-profile look. A larger diameter head tube is required than with a traditional threadless headset.

More details Page 12-8

More detailsPage 12-12

More detailsPage 12-18

VISUAL CUES & NOTES VISUAL CUES & NOTES (continued)

Threadless Integrated

Threadless Semi-Integrated

Threaded Semi-Integrated

Common versions Integrated System (Cane Creek) Hiddenset (Campagnolo)

Common versions Zero Stack (Cane Creek) Perdido (Chris King)

Common versions Not common

Available sizes1", 11⁄8"

Available sizes 1", 11⁄8"

Available sizes11⁄8"

NotesThe Cane Creek standard is predominant.The Campagnolo standard is also used. Other standards are quite rare.

Notes The Cane Creek standard is almost universally used. Other standards exist, but are quite rare.

NotesFound on some Giant bicycles.Mainly an OE (original equipment) specification for European style city bikes.

More detailsPage 12-20

More detailsPage 12-24

More detailsPage 12-28

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12heaA_8Pc_df.indd 2-3 8/20/04 11:01:30 AM

Page 4: Chapter12 Headsets

12-4 Sutherland’s 7th Edition 12-5Sutherland’s 7th Edition

CHAPTER 12

HEADSETS

CHAPTER 12

THREADEDDerived from the original 1" diameter head tube

national standards now typically standardized

as follows:

1" JIS standard. JIS (Japanese Industrial Stan-

dard) is common on lower-priced bikes from

Japan, Taiwan, and China.

1" Professional (Campagnolo) standard: pre-

dominates among aftermarket headsets and

higher-end bikes and framesets. JIS dimen-

sioned bikes can be milled to Professional

standard. The opposite is not true.

11⁄8" from the original Tioga design; also used

on some tandems and mopeds.

1¼" from the original Gary Fisher design.

THREADLESS Standard/AheadSet type1" JIS standard.

1" Professional dimensional standard, more

common for aftermarket headsets. JIS dimen-

sioned forks and frames can be reamed to Pro-

fessional standard.

11⁄8" to Tioga standard.

1¼" to Gary Fisher standard.

1.5" (One.point.five): a cooperative standard

from Cane Creek, Manitou and others. Cannon-

dale may have been the first company to use

a 1½" head tube. Cannondale initially used

a ream depth of 11 mm, but then changed to

25.4 mm, the same as the cooperative standard.

Cane Creek makes a special headset to convert

Headshox equipped Cannondales to forks with

a 1 1⁄8" steerer. Cannondale has also used some

nonstandard stem/steerer sizes.

THREADLESS LOW-PROFILE Intellaset/Slimstak1" and 11⁄8" Uses conventional external cups,

flush to the sides of the head tube. Most com-

mon in Europe. Headset adjustment and stem

attachment follow the same procedures as for

any standard threadless headset. It can be con-

sidered a subset or derivative of the standard

threadless design.

THREADLESS INTEGRATEDBearing cartridges are installed into an enlarged

and specially machined head tube without cups,

achieving the lowest stack height of any design.

This design requires especially good ream con-

centricity and depth control. Headset adjustment

and stem attachment follow the same procedures

as for a standard threadless headset.

1" and 11⁄8" Cane Creek standard (mostly 1 1⁄8").

1" and 11⁄8" Campagnolo Hiddenset standard.

1" and 11⁄8" other standard(s), very rare.

THREADLESS SEMI-INTEGRATEDSometimes confused with Integrated; has cups

semi-recessed (and pressed) into and onto the

head tube to achieve a low stack height. Head

tube diameter is large to accommodate the re-

cessed cups. Headset adjustment and stem at-

tachment follow the same procedures as with

any standard threadless headset.

1" and 11⁄8" Cane Creek Zero Stack standard

(95% of market share, mostly in the 1 1⁄8" size).

1" and 11⁄8" to various other standards, very rare.

THREADED SEMI-INTEGRATED 1" and 11⁄8" New, fairly rare, and mainly on Eu-

ropean city bikes. Combines the large diameter

head tube of the semi-integrated type (similar

dimensions) with a threaded steerer tube for

greater stem height adjustability. This type of

headset may be found on some Giant bicycles.

UNUSUAL COMBINATIONSSome bicycles combine a 1¼" lower stack with

a 1 1⁄8" upper stack (e.g., Trek 5900); other bicy-

cles combine a 1" O.D. fork with a 1 1⁄8" headset,

using special parts so as to deplete old stock;

some RockShox 1" forks have JIS dimensioned

crown race seats; one titanium Litespeed model

was designed for an integrated headset using

sleeves inserted into the head tube, and there

are yet other unusual combinations. Mostly,

these exceptions and hybrids follow the general

guidelines–though with a twist. Being aware

of the normal standards should help you cope

more easily.

BMX EXCEPTIONSBMX bicycles typically follow the above stan-

dards, though for the 1" size and mainly on

older bicycles, there is also an increasingly less

common original standard using a 1" diam-

eter steerer tube with 32.7 mm OD cups pressed

into a 32.5 mm ID head tube. Crown race seat OD

is 26.5 mm and crown race ID is 26.4 mm, like

those of the 1" Professional.

Headsets Summary Headsets Summary (continued)

HEADSETS

ODDBALLS

Being aware of standards helps you cope with the odd exception.

For information on the original 1" diameter head tube national standards, refer to Sutherland’s 6th Edition, Chapter 14.

12heaA_8Pc_df.indd 4-5 8/20/04 11:01:31 AM

Page 5: Chapter12 Headsets

12-4 Sutherland’s 7th Edition 12-5Sutherland’s 7th Edition

CHAPTER 12

HEADSETS

CHAPTER 12

THREADEDDerived from the original 1" diameter head tube

national standards now typically standardized

as follows:

1" JIS standard. JIS (Japanese Industrial Stan-

dard) is common on lower-priced bikes from

Japan, Taiwan, and China.

1" Professional (Campagnolo) standard: pre-

dominates among aftermarket headsets and

higher-end bikes and framesets. JIS dimen-

sioned bikes can be milled to Professional

standard. The opposite is not true.

11⁄8" from the original Tioga design; also used

on some tandems and mopeds.

1¼" from the original Gary Fisher design.

THREADLESS Standard/AheadSet type1" JIS standard.

1" Professional dimensional standard, more

common for aftermarket headsets. JIS dimen-

sioned forks and frames can be reamed to Pro-

fessional standard.

11⁄8" to Tioga standard.

1¼" to Gary Fisher standard.

1.5" (One.point.five): a cooperative standard

from Cane Creek, Manitou and others. Cannon-

dale may have been the first company to use

a 1½" head tube. Cannondale initially used

a ream depth of 11 mm, but then changed to

25.4 mm, the same as the cooperative standard.

Cane Creek makes a special headset to convert

Headshox equipped Cannondales to forks with

a 1 1⁄8" steerer. Cannondale has also used some

nonstandard stem/steerer sizes.

THREADLESS LOW-PROFILE Intellaset/Slimstak1" and 11⁄8" Uses conventional external cups,

flush to the sides of the head tube. Most com-

mon in Europe. Headset adjustment and stem

attachment follow the same procedures as for

any standard threadless headset. It can be con-

sidered a subset or derivative of the standard

threadless design.

THREADLESS INTEGRATEDBearing cartridges are installed into an enlarged

and specially machined head tube without cups,

achieving the lowest stack height of any design.

This design requires especially good ream con-

centricity and depth control. Headset adjustment

and stem attachment follow the same procedures

as for a standard threadless headset.

1" and 11⁄8" Cane Creek standard (mostly 1 1⁄8").

1" and 11⁄8" Campagnolo Hiddenset standard.

1" and 11⁄8" other standard(s), very rare.

THREADLESS SEMI-INTEGRATEDSometimes confused with Integrated; has cups

semi-recessed (and pressed) into and onto the

head tube to achieve a low stack height. Head

tube diameter is large to accommodate the re-

cessed cups. Headset adjustment and stem at-

tachment follow the same procedures as with

any standard threadless headset.

1" and 11⁄8" Cane Creek Zero Stack standard

(95% of market share, mostly in the 1 1⁄8" size).

1" and 11⁄8" to various other standards, very rare.

THREADED SEMI-INTEGRATED 1" and 11⁄8" New, fairly rare, and mainly on Eu-

ropean city bikes. Combines the large diameter

head tube of the semi-integrated type (similar

dimensions) with a threaded steerer tube for

greater stem height adjustability. This type of

headset may be found on some Giant bicycles.

UNUSUAL COMBINATIONSSome bicycles combine a 1¼" lower stack with

a 1 1⁄8" upper stack (e.g., Trek 5900); other bicy-

cles combine a 1" O.D. fork with a 1 1⁄8" headset,

using special parts so as to deplete old stock;

some RockShox 1" forks have JIS dimensioned

crown race seats; one titanium Litespeed model

was designed for an integrated headset using

sleeves inserted into the head tube, and there

are yet other unusual combinations. Mostly,

these exceptions and hybrids follow the general

guidelines–though with a twist. Being aware

of the normal standards should help you cope

more easily.

BMX EXCEPTIONSBMX bicycles typically follow the above stan-

dards, though for the 1" size and mainly on

older bicycles, there is also an increasingly less

common original standard using a 1" diam-

eter steerer tube with 32.7 mm OD cups pressed

into a 32.5 mm ID head tube. Crown race seat OD

is 26.5 mm and crown race ID is 26.4 mm, like

those of the 1" Professional.

Headsets Summary Headsets Summary (continued)

HEADSETS

ODDBALLS

Being aware of standards helps you cope with the odd exception.

For information on the original 1" diameter head tube national standards, refer to Sutherland’s 6th Edition, Chapter 14.

12heaA_8Pc_df.indd 4-5 8/20/04 11:01:31 AM

Page 6: Chapter12 Headsets

12-6 Sutherland’s 7th Edition 12-7Sutherland’s 7th Edition

CHAPTER 12CHAPTER 12

HEADSETS

CHAPTER 12

HEADSETS

Generally, components are dimensioned with

“one-sided” tolerances. All of the tolerance range

is in one direction (either larger or smaller)

away from a “target” or “preferred” dimension.

The target dimensions generally achieve the

Headset Fit Headset Fit (continued)

minimum desirable press fit, with allowances in

the direction of tighter fits. The value given in

bold type is generally the target.

All dimensions are in millimeters unless other-

wise indicated.

Notes■ Dimensions are

guidelines only. Some situations (e.g. very thick walled steel head tube) may require reduced interference.

■ Bold values are target values with tolerance ranges falling in the direc-tion of increased interference.

Notes■ See detailed illus-

trations under each headset type, on the following pages, with many more fit dimensions.

■ Integrated head-sets have no cups; cartridge bearings are mounted directly to head tube.

Note■ Information

based on data collected from various fork and headset manufacturers.

For information on bicycles made before 1996, and on older national or brand standards, refer to Sutherland’s 6th Edition, page 14-2.

HEADSET FIT TO FRAME & FORK

Standard Nominal steerer OD

Steerer OD range

Fork crown seat OD

Headset crown race ID

1" (25.4) Professional1" (25.4) 25.25 / 25.40*

26.43† / 26.49 26.35 / 26.40†

1" (25.4) JIS 27.03† / 27.09 26.95 / 27.00†

11⁄8" (28.6) 11⁄8" (28.6) 28.45 / 28.60* 30.015† / 30.075 29.93 / 29.98†

1¼" (31.8) 1¼" (31.8) 31.60 / 31.75* 33.03† / 33.09 32.95 / 33.00†

1.5" (38.1) 1.5" (38.1) 38.074 / 38.202* 39.79† / 39.85 39.71 / 39.76†

* Bold values are target values with tolerance ranges in the direction of reduced interference. † Bold values are target values with tolerance ranges in the direction of increased interference.

STEERER TUBE & CROWN RACE DIAMETERS

Cane Creek Integrated System Campagnolo Hiddenset

Nominal Steerer OD ID Angle ID Angle

1" (25.4) Professional 38.15 / 38.25 45° 42* 45°

11⁄8" (28.6) 41.1 / 41.2 45° 42* 45°

* Tolerance has not been ascertained.

INTEGRATED HEADSET HEAD TUBE FIT

Threadless or Threaded*, standard external cup design

Semi-Integrated

Cane Creek Zero Stack Chris King Perdido

Standard Head tube ID

Cup insertion OD

Head tube ID

Cup insertion OD

Head tube ID

Cup insertion OD

1" (25.4) Professional

30.05 / 30.10 30.20 / 30.30 41.35 / 41.40 41.45 / 41.50 – –

1" (25.4) JIS 29.85 / 29.90 30.00 / 30.10 – – – –

11⁄8" (28.6) 33.90 / 33.95 34.05 / 34.15 43.95 / 44.00 44.05 / 44.10 44.450 / 44.475 44.47 / 44.5

1¼" (31.8) 36.90 / 36.95 37.05 / 37.15 – – – –

1.5" (38.1)* 49.57 / 49.61 49.70 / 49.75 – – – –

* Threaded not available in 1.5."

HEADSET TO HEAD TUBE FIT, COMMON TYPES

Note

Headsets are sold and distributed based on steerer tube diameter, then on other attributes such as threading and head tube fit. There are many combinations, so take the time to identify and order correctly.

������������������������

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Illustrations of head tube reaming, based on Cane Creek standards for Standard, Semi-Integrated, and Integrated threadless 11⁄8".

See charts on this page and other pages for other sizes and standards.

11⁄8" Ahead 11⁄8" Zero Stack 11⁄8" Integrated System�����������������������������������������������������

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12heaA_8Pc_df.indd 6-7 8/20/04 11:01:32 AM

Page 7: Chapter12 Headsets

12-6 Sutherland’s 7th Edition 12-7Sutherland’s 7th Edition

CHAPTER 12CHAPTER 12

HEADSETS

CHAPTER 12

HEADSETS

Generally, components are dimensioned with

“one-sided” tolerances. All of the tolerance range

is in one direction (either larger or smaller)

away from a “target” or “preferred” dimension.

The target dimensions generally achieve the

Headset Fit Headset Fit (continued)

minimum desirable press fit, with allowances in

the direction of tighter fits. The value given in

bold type is generally the target.

All dimensions are in millimeters unless other-

wise indicated.

Notes■ Dimensions are

guidelines only. Some situations (e.g. very thick walled steel head tube) may require reduced interference.

■ Bold values are target values with tolerance ranges falling in the direc-tion of increased interference.

Notes■ See detailed illus-

trations under each headset type, on the following pages, with many more fit dimensions.

■ Integrated head-sets have no cups; cartridge bearings are mounted directly to head tube.

Note■ Information

based on data collected from various fork and headset manufacturers.

For information on bicycles made before 1996, and on older national or brand standards, refer to Sutherland’s 6th Edition, page 14-2.

HEADSET FIT TO FRAME & FORK

Standard Nominal steerer OD

Steerer OD range

Fork crown seat OD

Headset crown race ID

1" (25.4) Professional1" (25.4) 25.25 / 25.40*

26.43† / 26.49 26.35 / 26.40†

1" (25.4) JIS 27.03† / 27.09 26.95 / 27.00†

11⁄8" (28.6) 11⁄8" (28.6) 28.45 / 28.60* 30.015† / 30.075 29.93 / 29.98†

1¼" (31.8) 1¼" (31.8) 31.60 / 31.75* 33.03† / 33.09 32.95 / 33.00†

1.5" (38.1) 1.5" (38.1) 38.074 / 38.202* 39.79† / 39.85 39.71 / 39.76†

* Bold values are target values with tolerance ranges in the direction of reduced interference. † Bold values are target values with tolerance ranges in the direction of increased interference.

STEERER TUBE & CROWN RACE DIAMETERS

Cane Creek Integrated System Campagnolo Hiddenset

Nominal Steerer OD ID Angle ID Angle

1" (25.4) Professional 38.15 / 38.25 45° 42* 45°

11⁄8" (28.6) 41.1 / 41.2 45° 42* 45°

* Tolerance has not been ascertained.

INTEGRATED HEADSET HEAD TUBE FIT

Threadless or Threaded*, standard external cup design

Semi-Integrated

Cane Creek Zero Stack Chris King Perdido

Standard Head tube ID

Cup insertion OD

Head tube ID

Cup insertion OD

Head tube ID

Cup insertion OD

1" (25.4) Professional

30.05 / 30.10 30.20 / 30.30 41.35 / 41.40 41.45 / 41.50 – –

1" (25.4) JIS 29.85 / 29.90 30.00 / 30.10 – – – –

11⁄8" (28.6) 33.90 / 33.95 34.05 / 34.15 43.95 / 44.00 44.05 / 44.10 44.450 / 44.475 44.47 / 44.5

1¼" (31.8) 36.90 / 36.95 37.05 / 37.15 – – – –

1.5" (38.1)* 49.57 / 49.61 49.70 / 49.75 – – – –

* Threaded not available in 1.5."

HEADSET TO HEAD TUBE FIT, COMMON TYPES

Note

Headsets are sold and distributed based on steerer tube diameter, then on other attributes such as threading and head tube fit. There are many combinations, so take the time to identify and order correctly.

������������������������

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Illustrations of head tube reaming, based on Cane Creek standards for Standard, Semi-Integrated, and Integrated threadless 11⁄8".

See charts on this page and other pages for other sizes and standards.

11⁄8" Ahead 11⁄8" Zero Stack 11⁄8" Integrated System�����������������������������������������������������

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12heaA_8Pc_df.indd 6-7 8/20/04 11:01:32 AM

Page 8: Chapter12 Headsets

12-8 Sutherland’s 7th Edition 12-9Sutherland’s 7th Edition

HEADSETS

CHAPTER 12

HEADSETS

CHAPTER 12Threaded Standard Threaded Standard (continued)

ILLUSTRATIONS & DIMENSIONS ILLUSTRATIONS & DIMENSIONS (continued)

Notes■ The increasingly

rare JIS 1" stand-ard headset can be replaced by Professional 1" after milling the head tube and crown race seat.

■ Numbers in bold are target dimensions.

■ See page 12-6 for comments on tolerance and target dimensions.

Tip

Loose balls are generic, avoiding ordering problems. Ball retainers usually have fewer balls, and lower load capacity. Ball retainers may sometimes be nec-essary if assembly difficulties prevent loose balls from being correctly positioned.

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12heaA_8Pc_df.indd 8-9 8/20/04 11:01:34 AM

Page 9: Chapter12 Headsets

12-8 Sutherland’s 7th Edition 12-9Sutherland’s 7th Edition

HEADSETS

CHAPTER 12

HEADSETS

CHAPTER 12Threaded Standard Threaded Standard (continued)

ILLUSTRATIONS & DIMENSIONS ILLUSTRATIONS & DIMENSIONS (continued)

Notes■ The increasingly

rare JIS 1" stand-ard headset can be replaced by Professional 1" after milling the head tube and crown race seat.

■ Numbers in bold are target dimensions.

■ See page 12-6 for comments on tolerance and target dimensions.

Tip

Loose balls are generic, avoiding ordering problems. Ball retainers usually have fewer balls, and lower load capacity. Ball retainers may sometimes be nec-essary if assembly difficulties prevent loose balls from being correctly positioned.

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12heaA_8Pc_df.indd 8-9 8/20/04 11:01:34 AM

Page 10: Chapter12 Headsets

12-10 Sutherland’s 7th Edition 12-11Sutherland’s 7th Edition

HEADSETS

CHAPTER 12 CHAPTER 12Threaded Standard (continued) Threaded Standard (continued)

HEADSETS

NoteBearing balls in retainers are shown in bearing informa-tion column as R0 – ‰" with 0 = number of balls & ‰" = ball size (example: R20 – 5⁄32"). If number of balls is un-known, comments show ‰" balls in retainer.

RECENT MODELS, STACK HEIGHTS RECENT MODELS, STACK HEIGHTS (continued)

Brand Model name Size Total stack Notes

American Classic

Trilock 1" 33–35 Cartridge bearing

Trilock 11⁄8" 33–36 Cartridge bearing

Campagnolo Athena 1996–97 1" 41.5 3⁄16" balls in retainer

Athena 1998–99 1" 36.5 3⁄16" balls in retainer

Chorus 1996 1" 41.1 3⁄16" balls in retainer

Chorus 1997–99 1" 36.5 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainer

Chorus 2000–03 1" 36.5 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainer

Mirage 1996 1" 41.6 3⁄16" balls in retainer

Mirage 1997 1" 41.5 3⁄16" balls in retainer

Mirage 1998 1" 41.5 3⁄16" balls in retainer

Record 1996 1" 41.1 3⁄16" balls in retainer

Record 1997–98 1" 36.5 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainer

Record 1999–2003 1" 36.5 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainer

Veloce 1996–98 1" 41.5 3⁄16" balls in retainer

Chris King 2-Nut 1" 37.4 Cartridge bearing

GripNut 1" 33–38 Cartridge bearing

GripNut 11⁄8" 34–39 Cartridge bearing

GripNut 1¼" 34–39 Cartridge bearing

FSA Duron X 1" 40.6 Cartridge bearing

Ritchey Logic 1" 33.0 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainer

Logic 11⁄8" 33.0 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainer

Shimano 105 1" 37.5 Cartridge bearing

Deore LX 1" 37.5 Cartridge bearing

Dura-Ace 1" 37.5 Cartridge bearing

Dura-Ace Track 1" 37.5 5⁄32" balls in retainer

LX 1" 37.5 Cartridge bearing

STX 1" 37.5 Cartridge bearing

Ultegra 1" 37.5 Cartridge bearing

Brand Model name Size Total stack Notes

Shimano (continued)

XT 1" 37.5 Cartridge bearing

Deore LX 11⁄8" 37.5 Cartridge bearing

LX 11⁄8" 37.5 Cartridge bearing

STX 11⁄8" 37.5 Cartridge bearing

XT 11⁄8" 37.5 Cartridge bearing

Stronglight A-9 1" 38.0 Needle bearing

Delta 1" 38.0 Needle bearing

Tange Seiki Comet 1" 40.0 Shimano cartridge bearing

G Master 1" 43.6 Taper roller bearing

Levin CD 1" 35.0 R20 – 5⁄32"

Levin CDS 1" 33.3 R20 – 5⁄32"

Passage 1" 30.6 R16 – 5⁄32"

Passage DX 1" 35.1 R16 – 5⁄32"

Super Roller 1" 35.5 Taper roller bearing

Techno Glide 1" 34.0 Stainless steel angular-contact bearing

Techno Glide 2 1" 34.0 Stainless steel angular-contact bearing

Vantage 1" 35.0 R20 – 5⁄32"

Vantage DL 1" 34.0 Upper: R18 – 1⁄8", lower: R20 – 5⁄32"

Passage DX 11⁄8" 34.4 R20 – 5⁄32"

Passage 11⁄8" 11⁄8" 32.0 R20 – 5⁄32"

Super Roller 11⁄8" 38.5 Taper roller bearing

Techno Glide 11⁄8" 36.6 Stainless steel angular-contact bearing

Techno Glide 2 11⁄8" 36.6 Stainless steel angular-contact bearing

Vantage DL 11⁄8" 33.2 R22 – 5⁄32"

Super Roller 1¼" 35.2 Taper roller bearing

Vantage DL 1¼" 34.6 R22 – 5⁄32"

YST HP-8002 1" 34.0 5⁄32" balls in retainer

737-SBW 11⁄8" 34.0 5⁄32" balls in retainer

707-SBW 1¼" 39.0 5⁄32" balls in retainer(continued)

12heaA_8Pc_df.indd 10-11 8/20/04 11:01:36 AM

Page 11: Chapter12 Headsets

12-10 Sutherland’s 7th Edition 12-11Sutherland’s 7th Edition

HEADSETS

CHAPTER 12 CHAPTER 12Threaded Standard (continued) Threaded Standard (continued)

HEADSETS

NoteBearing balls in retainers are shown in bearing informa-tion column as R0 – ‰" with 0 = number of balls & ‰" = ball size (example: R20 – 5⁄32"). If number of balls is un-known, comments show ‰" balls in retainer.

RECENT MODELS, STACK HEIGHTS RECENT MODELS, STACK HEIGHTS (continued)

Brand Model name Size Total stack Notes

American Classic

Trilock 1" 33–35 Cartridge bearing

Trilock 11⁄8" 33–36 Cartridge bearing

Campagnolo Athena 1996–97 1" 41.5 3⁄16" balls in retainer

Athena 1998–99 1" 36.5 3⁄16" balls in retainer

Chorus 1996 1" 41.1 3⁄16" balls in retainer

Chorus 1997–99 1" 36.5 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainer

Chorus 2000–03 1" 36.5 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainer

Mirage 1996 1" 41.6 3⁄16" balls in retainer

Mirage 1997 1" 41.5 3⁄16" balls in retainer

Mirage 1998 1" 41.5 3⁄16" balls in retainer

Record 1996 1" 41.1 3⁄16" balls in retainer

Record 1997–98 1" 36.5 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainer

Record 1999–2003 1" 36.5 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainer

Veloce 1996–98 1" 41.5 3⁄16" balls in retainer

Chris King 2-Nut 1" 37.4 Cartridge bearing

GripNut 1" 33–38 Cartridge bearing

GripNut 11⁄8" 34–39 Cartridge bearing

GripNut 1¼" 34–39 Cartridge bearing

FSA Duron X 1" 40.6 Cartridge bearing

Ritchey Logic 1" 33.0 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainer

Logic 11⁄8" 33.0 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainer

Shimano 105 1" 37.5 Cartridge bearing

Deore LX 1" 37.5 Cartridge bearing

Dura-Ace 1" 37.5 Cartridge bearing

Dura-Ace Track 1" 37.5 5⁄32" balls in retainer

LX 1" 37.5 Cartridge bearing

STX 1" 37.5 Cartridge bearing

Ultegra 1" 37.5 Cartridge bearing

Brand Model name Size Total stack Notes

Shimano (continued)

XT 1" 37.5 Cartridge bearing

Deore LX 11⁄8" 37.5 Cartridge bearing

LX 11⁄8" 37.5 Cartridge bearing

STX 11⁄8" 37.5 Cartridge bearing

XT 11⁄8" 37.5 Cartridge bearing

Stronglight A-9 1" 38.0 Needle bearing

Delta 1" 38.0 Needle bearing

Tange Seiki Comet 1" 40.0 Shimano cartridge bearing

G Master 1" 43.6 Taper roller bearing

Levin CD 1" 35.0 R20 – 5⁄32"

Levin CDS 1" 33.3 R20 – 5⁄32"

Passage 1" 30.6 R16 – 5⁄32"

Passage DX 1" 35.1 R16 – 5⁄32"

Super Roller 1" 35.5 Taper roller bearing

Techno Glide 1" 34.0 Stainless steel angular-contact bearing

Techno Glide 2 1" 34.0 Stainless steel angular-contact bearing

Vantage 1" 35.0 R20 – 5⁄32"

Vantage DL 1" 34.0 Upper: R18 – 1⁄8", lower: R20 – 5⁄32"

Passage DX 11⁄8" 34.4 R20 – 5⁄32"

Passage 11⁄8" 11⁄8" 32.0 R20 – 5⁄32"

Super Roller 11⁄8" 38.5 Taper roller bearing

Techno Glide 11⁄8" 36.6 Stainless steel angular-contact bearing

Techno Glide 2 11⁄8" 36.6 Stainless steel angular-contact bearing

Vantage DL 11⁄8" 33.2 R22 – 5⁄32"

Super Roller 1¼" 35.2 Taper roller bearing

Vantage DL 1¼" 34.6 R22 – 5⁄32"

YST HP-8002 1" 34.0 5⁄32" balls in retainer

737-SBW 11⁄8" 34.0 5⁄32" balls in retainer

707-SBW 1¼" 39.0 5⁄32" balls in retainer(continued)

12heaA_8Pc_df.indd 10-11 8/20/04 11:01:36 AM

Page 12: Chapter12 Headsets

12-12 Sutherland’s 7th Edition 12-13Sutherland’s 7th Edition

HEADSETS

CHAPTER 12

HEADSETS

CHAPTER 12Threadless Standard Threadless Standard (continued)

ILLUSTRATIONS & DIMENSIONS ILLUSTRATIONS & DIMENSIONS (continued)

Notes■ Early Cannondales

using 1.5" headset may have a ream depth of 11 mm. Cane Creek makes some models to fit. It may not be a good idea to ream out the head tube to 25.4 (minimum) depth to fit standard 1.5" headsets, as Cannondale has used some head tubes with an “hourglass” shape that does not allow for adequate wall thickness with deep reams.

■ Cane Creek also makes a model to adapt 1.5" to work with 11⁄8" forks.

Notes■ JIS 1" standard

headset can be replaced by Profes-sional 1" after milling the head tube and crown race seat.

■ Numbers in bold are target dimensions.

■ See page 12-6 for comments on tolerance and target dimensions.

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12heaA_8Pc_df.indd 12-13 8/20/04 11:01:37 AM

Page 13: Chapter12 Headsets

12-12 Sutherland’s 7th Edition 12-13Sutherland’s 7th Edition

HEADSETS

CHAPTER 12

HEADSETS

CHAPTER 12Threadless Standard Threadless Standard (continued)

ILLUSTRATIONS & DIMENSIONS ILLUSTRATIONS & DIMENSIONS (continued)

Notes■ Early Cannondales

using 1.5" headset may have a ream depth of 11 mm. Cane Creek makes some models to fit. It may not be a good idea to ream out the head tube to 25.4 (minimum) depth to fit standard 1.5" headsets, as Cannondale has used some head tubes with an “hourglass” shape that does not allow for adequate wall thickness with deep reams.

■ Cane Creek also makes a model to adapt 1.5" to work with 11⁄8" forks.

Notes■ JIS 1" standard

headset can be replaced by Profes-sional 1" after milling the head tube and crown race seat.

■ Numbers in bold are target dimensions.

■ See page 12-6 for comments on tolerance and target dimensions.

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12heaA_8Pc_df.indd 12-13 8/20/04 11:01:37 AM

Page 14: Chapter12 Headsets

12-14 Sutherland’s 7th Edition 12-15Sutherland’s 7th Edition

HEADSETS

CHAPTER 12 CHAPTER 12Threadless Standard (continued) Threadless Standard (continued)

HEADSETS

Notes

■ Numerous AheadSet branded headsets are sold OEM only.

■ Bearing balls in retainers are shown in Notes column as R0 – ‰" with 0 = number of balls & ‰" = ball size. If number of balls is unknown, comments show ‰" balls in retainer.

Tip

Loose balls are generic, avoid-ing ordering problems. Ball retainers usu-ally have fewer balls, and lower load capacity. Ball retainers may sometimes be necessary if assembly dif-ficulties prevent loose balls from being correctly positioned.

RECENT MODELS, STACK HEIGHTS RECENT MODELS, STACK HEIGHTS (continued)

Brand Model name Size Total stack Notes

American Classic

Tri-Lock 11⁄8" 33–36 Cartridge

Ultra-Light 11⁄8" 28–29 Cartridge

AheadSet AL 1" 26 5⁄32" balls in retainer

C1 1" 27 Cartridge

C2 1" 27 Cartridge

DL 1" 25 5⁄32" balls in retainer

MX 1" 27 Special cup insertion OD (32.7), 5⁄32" in retainer

SAS 1" 27 5⁄32" balls in retainer

STS 1" 25 R16 – 5⁄32"

AL 11⁄8" 27 5⁄32" balls in retainer

C1 11⁄8" 27 Cartridge

C2 11⁄8" 27 Cartridge

C4 11⁄8" 26 5⁄32" balls in retainer

DL 11⁄8" 27 5⁄32" balls in retainer

DLC 11⁄8" 32 5⁄32" balls in retainer

SAS 11⁄8" 27 5⁄32" balls in retainer

SE 11⁄8" 26 5⁄32" balls in retainer

SST-fs 11⁄8" 26 5⁄32" balls in retainer

STS 11⁄8" 25 5⁄32" balls in retainer

SX 11⁄8" 25 5⁄32" balls in retainer

SX-fs 11⁄8" 25 5⁄32" balls in retainer

Tank FS 11⁄8" 26 5⁄32" balls in retainer

Tank MX 11⁄8" 26 5⁄32" balls in retainer

DL 1¼" 29 5⁄32" balls in retainer

SA 1¼" 28 5⁄32" balls in retainer

Double X 1.5" 37.8 Cartridge

Double X Short 1.5" 37.8 Cartridge, specifically for older Cannondales with short ream head tubes

Double XC 1.5" to 11⁄8" conversion

37.8 Fits 1.5" head tube and 11⁄8" fork steerer

Brand Model name Size Total stack Notes

AheadSet (continued)

Double XC Short 1.5" to 11⁄8" conversion

37.8 Fits 1.5" head tube and 11⁄8" fork steerer. Specifi-cally for older Cannondales with short ream head tubes

STR-C 11⁄8" to 1" conversion

23 Fits 11⁄8" head tube and 1" fork steerer. Common as Trek OEM only.

Cane Creek C1 1" 27 Now sold as AheadSet brand only, cartridge

C2 1" 27 Now sold as AheadSet brand only, cartridge

S2 1" 28 Cartridge

S6 1" 28 Cartridge

S-Pro (formerly S5) 1" 31 Cartridge

C1 11⁄8" 27 Now sold as AheadSet brand only, cartridge

C2 11⁄8" 27 Now sold as AheadSet brand only, cartridge

S1 11⁄8" 27 Cartridge

S2 11⁄8" 27 Cartridge

S6 11⁄8" 27 Cartridge

S-Pro (formerly S5) 11⁄8" 29 Cartridge

Campagnolo Chorus 1" 24.5 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainers

Record 1" 24.5 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainers

Record 11⁄8" 24.5 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainers

Chris King NoThreadSet 1" 28 Cartridge

NoThreadSet 11⁄8" 31.4 Cartridge

SteelSet 11⁄8" 31.4 Cartridge

NoThreadSet 1¼" 31 Cartridge

Devolution 1¼" to 11⁄8" conversion

31 Fits 1¼" head tube & 11⁄8" fork steerer, cartridge

Devolution 11⁄8" to 1" conversion

31 Fits 11⁄8" head tube & 1" fork steerer, cartridge

FSA Orbit DL 1" 29 5⁄32" balls in retainer

Orbit UF 1" 31 Needle/ball

Orbit X 1" 31.4 Angular-contact cartridge bearings

Orbit DL 11⁄8" 29 5⁄32" balls in retainer

(continued)(continued)

12heaA_8Pc_df.indd 14-15 8/20/04 11:01:39 AM

Page 15: Chapter12 Headsets

12-14 Sutherland’s 7th Edition 12-15Sutherland’s 7th Edition

HEADSETS

CHAPTER 12 CHAPTER 12Threadless Standard (continued) Threadless Standard (continued)

HEADSETS

Notes

■ Numerous AheadSet branded headsets are sold OEM only.

■ Bearing balls in retainers are shown in Notes column as R0 – ‰" with 0 = number of balls & ‰" = ball size. If number of balls is unknown, comments show ‰" balls in retainer.

Tip

Loose balls are generic, avoid-ing ordering problems. Ball retainers usu-ally have fewer balls, and lower load capacity. Ball retainers may sometimes be necessary if assembly dif-ficulties prevent loose balls from being correctly positioned.

RECENT MODELS, STACK HEIGHTS RECENT MODELS, STACK HEIGHTS (continued)

Brand Model name Size Total stack Notes

American Classic

Tri-Lock 11⁄8" 33–36 Cartridge

Ultra-Light 11⁄8" 28–29 Cartridge

AheadSet AL 1" 26 5⁄32" balls in retainer

C1 1" 27 Cartridge

C2 1" 27 Cartridge

DL 1" 25 5⁄32" balls in retainer

MX 1" 27 Special cup insertion OD (32.7), 5⁄32" in retainer

SAS 1" 27 5⁄32" balls in retainer

STS 1" 25 R16 – 5⁄32"

AL 11⁄8" 27 5⁄32" balls in retainer

C1 11⁄8" 27 Cartridge

C2 11⁄8" 27 Cartridge

C4 11⁄8" 26 5⁄32" balls in retainer

DL 11⁄8" 27 5⁄32" balls in retainer

DLC 11⁄8" 32 5⁄32" balls in retainer

SAS 11⁄8" 27 5⁄32" balls in retainer

SE 11⁄8" 26 5⁄32" balls in retainer

SST-fs 11⁄8" 26 5⁄32" balls in retainer

STS 11⁄8" 25 5⁄32" balls in retainer

SX 11⁄8" 25 5⁄32" balls in retainer

SX-fs 11⁄8" 25 5⁄32" balls in retainer

Tank FS 11⁄8" 26 5⁄32" balls in retainer

Tank MX 11⁄8" 26 5⁄32" balls in retainer

DL 1¼" 29 5⁄32" balls in retainer

SA 1¼" 28 5⁄32" balls in retainer

Double X 1.5" 37.8 Cartridge

Double X Short 1.5" 37.8 Cartridge, specifically for older Cannondales with short ream head tubes

Double XC 1.5" to 11⁄8" conversion

37.8 Fits 1.5" head tube and 11⁄8" fork steerer

Brand Model name Size Total stack Notes

AheadSet (continued)

Double XC Short 1.5" to 11⁄8" conversion

37.8 Fits 1.5" head tube and 11⁄8" fork steerer. Specifi-cally for older Cannondales with short ream head tubes

STR-C 11⁄8" to 1" conversion

23 Fits 11⁄8" head tube and 1" fork steerer. Common as Trek OEM only.

Cane Creek C1 1" 27 Now sold as AheadSet brand only, cartridge

C2 1" 27 Now sold as AheadSet brand only, cartridge

S2 1" 28 Cartridge

S6 1" 28 Cartridge

S-Pro (formerly S5) 1" 31 Cartridge

C1 11⁄8" 27 Now sold as AheadSet brand only, cartridge

C2 11⁄8" 27 Now sold as AheadSet brand only, cartridge

S1 11⁄8" 27 Cartridge

S2 11⁄8" 27 Cartridge

S6 11⁄8" 27 Cartridge

S-Pro (formerly S5) 11⁄8" 29 Cartridge

Campagnolo Chorus 1" 24.5 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainers

Record 1" 24.5 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainers

Record 11⁄8" 24.5 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainers

Chris King NoThreadSet 1" 28 Cartridge

NoThreadSet 11⁄8" 31.4 Cartridge

SteelSet 11⁄8" 31.4 Cartridge

NoThreadSet 1¼" 31 Cartridge

Devolution 1¼" to 11⁄8" conversion

31 Fits 1¼" head tube & 11⁄8" fork steerer, cartridge

Devolution 11⁄8" to 1" conversion

31 Fits 11⁄8" head tube & 1" fork steerer, cartridge

FSA Orbit DL 1" 29 5⁄32" balls in retainer

Orbit UF 1" 31 Needle/ball

Orbit X 1" 31.4 Angular-contact cartridge bearings

Orbit DL 11⁄8" 29 5⁄32" balls in retainer

(continued)(continued)

12heaA_8Pc_df.indd 14-15 8/20/04 11:01:39 AM

Page 16: Chapter12 Headsets

12-16 Sutherland’s 7th Edition 12-17Sutherland’s 7th Edition

HEADSETS

CHAPTER 12 CHAPTER 12Threadless Standard (continued) Threadless Standard (continued)

HEADSETS

Tip

Loose balls are generic, avoid-ing ordering problems. Ball retainers usu-ally have fewer balls, and lower load capacity. Ball retainers may sometimes be necessary if assembly dif-ficulties prevent loose balls from being correctly positioned.

Notes

■ Numerous AheadSet branded headsets are sold OEM only.

■ Bearing balls in retainers are shown in Notes column as R0 – ‰" with 0 = number of balls and ‰" = ball size (example: R20 – 5⁄32"). If number of balls is un-known, comments show ‰" balls in retainer.

Brand Model name Size Total stack Notes

FSA (continued)

Orbit Extreme Pro 11⁄8" 29.5 Angular-contact cartridge bearings

Orbit MX 11⁄8" 32.4 Angular-contact cartridge bearings

Orbit UF 11⁄8" 29 Needle/ball

Orbit X 11⁄8" 31.4 Angular-contact cartridge bearings

Orbit XL-II 11⁄8" 27 Cartridge

Sky Pilot 11⁄8" 29 Angular-contact cartridge/taper roller

The Pig DH Pro 11⁄8" 31 Cartridge

Orbit Xtreme Pro 1.5 1.5" 30 Cartridge

The Big Fat Pig 1.5" 29.5 Angular-contact cartridge bearings

Race Face Real Seal 11⁄8" 29 Cartridge

Real Seal DH 11⁄8" 29 Cartridge

Team SL 11⁄8" 31 Cartridge

Thermo SP 11⁄8" 32.5 Radial bearing/angular cartridge

Ritchey Logic 1" 27 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainer

WCS Logic 1" 28 Cartridge

Scuzzy Logic Comp 1" 28 Cartridge

Scuzzy Logic Pro 1" 28 Cartridge

Fuzzy Logic Comp 11⁄8" 29 Upper: 5⁄32" ball, lower: needle

Fuzzy Logic Pro 11⁄8" 32 Upper: needle, lower: needle

Logic 11⁄8" 26.5 Ball

SC Logic 11⁄8" 29 Upper: 5⁄32" balls, lower: ¼" balls, in retainer

Scuzzy Logic Comp 11⁄8" 28 Cartridge

Scuzzy Logic Pro 11⁄8" 28 Cartridge

WCS Logic 11⁄8" 28 Cartridge

Tange Seiki DL 1" 26.4 R20 – 5⁄32"

DLC 1" 31 Shimano cartridge bearing

DX3 1" 25.5 R16 – 5⁄32"

DX8 1" 26.5 R20 – 5⁄32"

RDC 1" 25.3 Cartridge bearing

STR 1" 23.6 R16 – 5⁄32"

RECENT MODELS, STACK HEIGHTS (continued)

Brand Model name Size Total stack Notes

Tange Seiki (continued)

Techno Glide 1" 25 Stainless steel angular-contact bearing

Techno Glide 2 1" 25 Stainless steel angular-contact bearing

TRB 1" 27 Upper: R20 – 5⁄32", lower: taper roller bearing

DL 11⁄8" 29 R22 – 5⁄32"

DLC 11⁄8" 31.9 Shimano cartridge bearing

DX4 11⁄8" 25.5 R22 – 5⁄32"

DX8 11⁄8" 24.9 R22 – 5⁄32"

Fatty MX 11⁄8" 24.9 R22 – 5⁄32"

FSD 11⁄8" 31.3 Cartridge bearing

LAV-82 11⁄8" 25.3 Cartridge bearing

ST6 11⁄8" 24.5 R20 – 5⁄32"

STR 11⁄8" 23.4 R22 – 5⁄32"

Techno Glide 11⁄8" 28.3 Stainless steel angular-contact bearing

Techno Glide 2 11⁄8" 28.3 Stainless steel angular-contact bearing

Techno Glide DH 11⁄8" 27 Stainless steel angular-contact bearing

TG4 11⁄8" 23.4 R20 – 5⁄32"

TRB 11⁄8" 28.5 Upper: R22 – 5⁄32", lower: taper roller bearing

DLC 1¼" 24.9 Shimano cartridge bearing

1.5BR 1.5" 29 R25 – 3⁄16"

1.5CB 1.5" 30 Cartridge bearing

Tioga Alchemy 11⁄8" 28 5⁄32" balls in retainer

Factory DH 11⁄8" 27.5 5⁄32" balls in retainer

Factory SL 11⁄8" 22 5⁄32" balls in retainer

Woodman Jupiter 11⁄8" 26.5 Cartridge

Saturn 11⁄8" 26.5 Cartridge/cartridge + needle bearing

WTB Momentum C 11⁄8" 29.8 Cartridge

Momentum GG 11⁄8" 32 Caged balls w/Grease Guard

YST HP-228AE 1" 42 Upper: 5⁄32", lower: ø 2.5 roller

CS-541AE 11⁄8" 42 Upper: 1⁄8", lower: ø 2.5 roller

RECENT MODELS, STACK HEIGHTS (continued)

(continued)

12heaA_8Pc_df.indd 16-17 8/20/04 11:01:40 AM

Page 17: Chapter12 Headsets

12-16 Sutherland’s 7th Edition 12-17Sutherland’s 7th Edition

HEADSETS

CHAPTER 12 CHAPTER 12Threadless Standard (continued) Threadless Standard (continued)

HEADSETS

Tip

Loose balls are generic, avoid-ing ordering problems. Ball retainers usu-ally have fewer balls, and lower load capacity. Ball retainers may sometimes be necessary if assembly dif-ficulties prevent loose balls from being correctly positioned.

Notes

■ Numerous AheadSet branded headsets are sold OEM only.

■ Bearing balls in retainers are shown in Notes column as R0 – ‰" with 0 = number of balls and ‰" = ball size (example: R20 – 5⁄32"). If number of balls is un-known, comments show ‰" balls in retainer.

Brand Model name Size Total stack Notes

FSA (continued)

Orbit Extreme Pro 11⁄8" 29.5 Angular-contact cartridge bearings

Orbit MX 11⁄8" 32.4 Angular-contact cartridge bearings

Orbit UF 11⁄8" 29 Needle/ball

Orbit X 11⁄8" 31.4 Angular-contact cartridge bearings

Orbit XL-II 11⁄8" 27 Cartridge

Sky Pilot 11⁄8" 29 Angular-contact cartridge/taper roller

The Pig DH Pro 11⁄8" 31 Cartridge

Orbit Xtreme Pro 1.5 1.5" 30 Cartridge

The Big Fat Pig 1.5" 29.5 Angular-contact cartridge bearings

Race Face Real Seal 11⁄8" 29 Cartridge

Real Seal DH 11⁄8" 29 Cartridge

Team SL 11⁄8" 31 Cartridge

Thermo SP 11⁄8" 32.5 Radial bearing/angular cartridge

Ritchey Logic 1" 27 Upper: 5⁄32" balls, lower: 3⁄16" balls, in retainer

WCS Logic 1" 28 Cartridge

Scuzzy Logic Comp 1" 28 Cartridge

Scuzzy Logic Pro 1" 28 Cartridge

Fuzzy Logic Comp 11⁄8" 29 Upper: 5⁄32" ball, lower: needle

Fuzzy Logic Pro 11⁄8" 32 Upper: needle, lower: needle

Logic 11⁄8" 26.5 Ball

SC Logic 11⁄8" 29 Upper: 5⁄32" balls, lower: ¼" balls, in retainer

Scuzzy Logic Comp 11⁄8" 28 Cartridge

Scuzzy Logic Pro 11⁄8" 28 Cartridge

WCS Logic 11⁄8" 28 Cartridge

Tange Seiki DL 1" 26.4 R20 – 5⁄32"

DLC 1" 31 Shimano cartridge bearing

DX3 1" 25.5 R16 – 5⁄32"

DX8 1" 26.5 R20 – 5⁄32"

RDC 1" 25.3 Cartridge bearing

STR 1" 23.6 R16 – 5⁄32"

RECENT MODELS, STACK HEIGHTS (continued)

Brand Model name Size Total stack Notes

Tange Seiki (continued)

Techno Glide 1" 25 Stainless steel angular-contact bearing

Techno Glide 2 1" 25 Stainless steel angular-contact bearing

TRB 1" 27 Upper: R20 – 5⁄32", lower: taper roller bearing

DL 11⁄8" 29 R22 – 5⁄32"

DLC 11⁄8" 31.9 Shimano cartridge bearing

DX4 11⁄8" 25.5 R22 – 5⁄32"

DX8 11⁄8" 24.9 R22 – 5⁄32"

Fatty MX 11⁄8" 24.9 R22 – 5⁄32"

FSD 11⁄8" 31.3 Cartridge bearing

LAV-82 11⁄8" 25.3 Cartridge bearing

ST6 11⁄8" 24.5 R20 – 5⁄32"

STR 11⁄8" 23.4 R22 – 5⁄32"

Techno Glide 11⁄8" 28.3 Stainless steel angular-contact bearing

Techno Glide 2 11⁄8" 28.3 Stainless steel angular-contact bearing

Techno Glide DH 11⁄8" 27 Stainless steel angular-contact bearing

TG4 11⁄8" 23.4 R20 – 5⁄32"

TRB 11⁄8" 28.5 Upper: R22 – 5⁄32", lower: taper roller bearing

DLC 1¼" 24.9 Shimano cartridge bearing

1.5BR 1.5" 29 R25 – 3⁄16"

1.5CB 1.5" 30 Cartridge bearing

Tioga Alchemy 11⁄8" 28 5⁄32" balls in retainer

Factory DH 11⁄8" 27.5 5⁄32" balls in retainer

Factory SL 11⁄8" 22 5⁄32" balls in retainer

Woodman Jupiter 11⁄8" 26.5 Cartridge

Saturn 11⁄8" 26.5 Cartridge/cartridge + needle bearing

WTB Momentum C 11⁄8" 29.8 Cartridge

Momentum GG 11⁄8" 32 Caged balls w/Grease Guard

YST HP-228AE 1" 42 Upper: 5⁄32", lower: ø 2.5 roller

CS-541AE 11⁄8" 42 Upper: 1⁄8", lower: ø 2.5 roller

RECENT MODELS, STACK HEIGHTS (continued)

(continued)

12heaA_8Pc_df.indd 16-17 8/20/04 11:01:40 AM

Page 18: Chapter12 Headsets

12-18 Sutherland’s 7th Edition 12-19Sutherland’s 7th Edition

CHAPTER 12 CHAPTER 12Threadless Low-Profile Threadless Low-Profile (continued)

HEADSETS HEADSETS

ILLUSTRATIONS & DIMENSIONS ILLUSTRATIONS & DIMENSIONS (continued)

Notes■ Heights are

rounded to the nearest millimeter.

■ Bearing balls in retainers are shown in Notes column as R0 – ‰" with 0 = number of balls & ‰" = ball size (example: R20 – 5⁄32"). If number of balls is un-known, comments show ‰" balls in retainer.

Notes■ The increasingly

rare JIS 1" stand-ard headset can be replaced by Professional 1" after milling the head tube and fork crown race.

■ Numbers in bold are target dimensions.

■ See page 12-6 for comments on tolerance and target dimensions.

RECENT MODELS, STACK HEIGHTS

Brand Model name Size Head tube ø

Total stack

Notes

FSA (Intellaset)

Intellaset Pro (No.14A) 1" ø 45 OD 28 36° x 36° angular bearing w/red seal

Intellaset Pro (No.14) 11⁄8" ø 45 OD 28 36° x 36° angular bearing w/red seal

TH (Intellaset)

No.28A 1" ø 37.5 OD 23 R22 – 1⁄8"

No.28 11⁄8" ø 41.5 OD 24 R26 – 1⁄8"

VP (Slimstak)

VP-A77CK 11⁄8" ø 41.5 OD 21 1⁄8" semi-cartridge

VP-A79 11⁄8" ø 41.5 OD 23 R25 – 1⁄8"

VP-A55A 11⁄8" ø 45 OD 23 1⁄8" in retainer

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12heaA_8Pc_df.indd 18-19 8/20/04 11:01:41 AM

Page 19: Chapter12 Headsets

12-18 Sutherland’s 7th Edition 12-19Sutherland’s 7th Edition

CHAPTER 12 CHAPTER 12Threadless Low-Profile Threadless Low-Profile (continued)

HEADSETS HEADSETS

ILLUSTRATIONS & DIMENSIONS ILLUSTRATIONS & DIMENSIONS (continued)

Notes■ Heights are

rounded to the nearest millimeter.

■ Bearing balls in retainers are shown in Notes column as R0 – ‰" with 0 = number of balls & ‰" = ball size (example: R20 – 5⁄32"). If number of balls is un-known, comments show ‰" balls in retainer.

Notes■ The increasingly

rare JIS 1" stand-ard headset can be replaced by Professional 1" after milling the head tube and fork crown race.

■ Numbers in bold are target dimensions.

■ See page 12-6 for comments on tolerance and target dimensions.

RECENT MODELS, STACK HEIGHTS

Brand Model name Size Head tube ø

Total stack

Notes

FSA (Intellaset)

Intellaset Pro (No.14A) 1" ø 45 OD 28 36° x 36° angular bearing w/red seal

Intellaset Pro (No.14) 11⁄8" ø 45 OD 28 36° x 36° angular bearing w/red seal

TH (Intellaset)

No.28A 1" ø 37.5 OD 23 R22 – 1⁄8"

No.28 11⁄8" ø 41.5 OD 24 R26 – 1⁄8"

VP (Slimstak)

VP-A77CK 11⁄8" ø 41.5 OD 21 1⁄8" semi-cartridge

VP-A79 11⁄8" ø 41.5 OD 23 R25 – 1⁄8"

VP-A55A 11⁄8" ø 45 OD 23 1⁄8" in retainer

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12heaA_8Pc_df.indd 18-19 8/20/04 11:01:41 AM

Page 20: Chapter12 Headsets

12-20 Sutherland’s 7th Edition 12-21Sutherland’s 7th Edition

CHAPTER 12 CHAPTER 12Threadless Integrated Threadless Integrated (continued)

HEADSETS HEADSETS

ILLUSTRATIONS & DIMENSIONS

Notes■ JIS 1" standard

headset can be replaced with Professional 1" by milling the head tube and crown race seat to that standard.

■ Numbers in bold are target dimensions.

■ See page 12-6 for comments on tolerance and target dimensions.

ILLUSTRATIONS & DIMENSIONS (continued)

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Fit standard for Integrated System and Hiddenset: Bearings are not press fit into the head tube, but fit loosely. When the headset is fully assembled and tightened by the star-fangled nut, the bear-ings wedge into the 45° head tube reams and become snug.

12heaB_8Pb_eh.indd 20-21 8/20/04 10:17:02 AM

Page 21: Chapter12 Headsets

12-20 Sutherland’s 7th Edition 12-21Sutherland’s 7th Edition

CHAPTER 12 CHAPTER 12Threadless Integrated Threadless Integrated (continued)

HEADSETS HEADSETS

ILLUSTRATIONS & DIMENSIONS

Notes■ JIS 1" standard

headset can be replaced with Professional 1" by milling the head tube and crown race seat to that standard.

■ Numbers in bold are target dimensions.

■ See page 12-6 for comments on tolerance and target dimensions.

ILLUSTRATIONS & DIMENSIONS (continued)

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Fit standard for Integrated System and Hiddenset: Bearings are not press fit into the head tube, but fit loosely. When the headset is fully assembled and tightened by the star-fangled nut, the bear-ings wedge into the 45° head tube reams and become snug.

12heaB_8Pb_eh.indd 20-21 8/20/04 10:17:02 AM

Page 22: Chapter12 Headsets

12-22 Sutherland’s 7th Edition 12-23Sutherland’s 7th Edition

HEADSETS

CHAPTER 12

HEADSETS

CHAPTER 12Threadless Integrated (continued) Threadless Integrated (continued)

Notes■ Numerous

AheadSet branded headsets are sold OEM only.

■ Bearing balls in retainers are shown in Notes column as R0 – ‰" with 0 = number of balls & ‰" = ball size (example: R20 – 5⁄32"). If number of balls is unknown, comments show ‰" balls in retainer.

Note■ Numerous

AheadSet branded head-sets are sold OEM only.

Brand Model name Size Total stack

Upper stack

Lower stack

Notes

AheadSet ISC 11⁄8" 10.0 6.0 4.0 Cartridge bearing

Cane Creek IS2 1" 8.0 7.0 1.0 Cartridge bearing

IS6 1" 8.0 7.0 1.0 Cartridge bearing

IS2 11⁄8" 8.0 7.0 1.0 Cartridge bearing

IS6 11⁄8" 8.0 7.0 1.0 Cartridge bearing

IS2 11⁄8" 17.0 16.0 1.0 Tall cover, cartridge bearing

IS6 11⁄8" 17.0 16.0 1.0 Tall cover, cartridge bearing

FSA Orbit IS 1" 8.2 7.2 1.0 Angular-contact cartridge bearing

Orbit IS 11⁄8" 8.2 7.2 1.0 Angular-contact cartridge bearing

TH IS-3 11⁄8" 8.2 7.2 1.0 R26 – 1⁄8" (45° head tube ream)

Tange Seiki IS22 1" 7.8 7.0 0.8 Cartridge bearing

IS22 11⁄8" 7.8 7.0 0.8 Cartridge bearing

IS22E 11⁄8" 7.8 7.0 0.8 Cartridge bearing

IS22LT 11⁄8" 12.8 12.0 0.8 Cartridge bearing

IS23 11⁄8" 9.5 7.5 2.0 Cartridge bearing

IST 11⁄8" 5.5 5.0 0.5 R20 – 5⁄32"

RECENT MODELS, STACK HEIGHTSCOMPATIBLE WITH CANE CREEK INTEGRATED SYSTEM HEAD TUBES

RECENT MODELS, STACK HEIGHTS (continued)

COMPATIBLE WITH CAMPAGNOLO HIDDENSET HEAD TUBES

Brand Model name Size Total stack

Upper stack

Lower stack

Notes

Campagnolo Record 1" 6.0 5.4 0.6 R22 – 5⁄32"

Chorus 11⁄8" 6.0 5.4 0.6 R28 – 1⁄8"

Chorus TTC 11⁄8" 12.0 11.4 0.6 R28 – 1⁄8"

Record 11⁄8" 6.0 5.4 0.6 R28 – 1⁄8"

Record TTC 11⁄8" 12.0 11.4 0.6 R28 – 1⁄8"

FSA Orbit CE 1" 9.6 8.6 1.0 Angular-contact cartridge bearing

Orbit CF 1" 10.5 9.5 1.0 Angular-contact cartridge bearing

Orbit CE 11⁄8" 9.5 8.6 0.9 Angular-contact cartridge bearing

Orbit CF 11⁄8" 10.4 9.5 0.9 Angular-contact cartridge bearing

Ritchey Logic Zero WCS Road

11⁄8" 10.0 9.0 1.0 Angular-contact bearing, drop-in*

Logic Zero Pro Road

11⁄8" 10.0 9.0 1.0 Angular-contact bearing, drop-in*

Logic Zero Comp Road

11⁄8" 7.0 6.0 1.0 Angular-contact bearing, drop-in*

* Ritchey’s way to say the bearing fits loosely into the head tube, and is not press fit.

Brand Model name

Size Total stack

Upper stack

Lower stack

Notes Head tube OD

Head tube ID

Ream angle

Upper bore depth

Lower bore depth

AheadSet ICBM 11⁄8" 8.0 5.0 3.0 Cartridge bearing, special for Schwinn n/a* ø 44.8 45° n/a* n/a*

Ritchey Logic Zero Pro MTB

11⁄8" 7.0 6.0 1.0 Angular-contact cartridge bearing, press fit

ø 50 ø 44.2 36° 5.8 6.8

Logic Zero Pro Road

11⁄8" 9.0 8.0 1.0 Angular-contact cartridge bearing, press fit

ø 48 ø 41.7 36° 5.8 6.8

Logic Zero Comp

11⁄8" 12.5 7.0 5.5 Angular-contact cartridge bearing, lip similar to semi-integrated designs

ø 50 ø 44.05 45° 7.0 7.0

Logic Zero Pro MTB

11⁄8" 9.0 8.0 1.0 Angular-contact cartridge bearing, drop-in†

ø 50 ø 44.2 45° 3.0 6.9

Logic Zero Comp MTB

11⁄8" 6.5 5.5 1.0 Angular-contact cartridge bearing, drop-in†

ø 50 ø 44.2 45° 3.0 6.9

TH Orbit I 1" 10.4 9.4 1.0 45° angular-contact cartridge bearing w/blue seal

ø 45 ø 41.2 45° 2.7 7.2

Orbit I 11⁄8" 10.4 9.4 1.0 45° angular-contact cartridge bearing w/blue seal

ø 45 ø 41.2 45° 2.7 7.2

No.23/TH 11⁄8" 10.4 9.4 1.0 R26 – 1⁄8" (36° head tube ream) ø 45 ø 41.7 36° 2.1 6.5

* Special Schwinn model from the late 1990s, missing data. † Ritchey’s way to say the bearing fits loosely into the head tube, and is not press fit.

UNIQUE MODELS NONSTANDARD DATA

12heaB_8Pb_eh.indd 22-23 8/20/04 10:17:05 AM

Page 23: Chapter12 Headsets

12-22 Sutherland’s 7th Edition 12-23Sutherland’s 7th Edition

HEADSETS

CHAPTER 12

HEADSETS

CHAPTER 12Threadless Integrated (continued) Threadless Integrated (continued)

Notes■ Numerous

AheadSet branded headsets are sold OEM only.

■ Bearing balls in retainers are shown in Notes column as R0 – ‰" with 0 = number of balls & ‰" = ball size (example: R20 – 5⁄32"). If number of balls is unknown, comments show ‰" balls in retainer.

Note■ Numerous

AheadSet branded head-sets are sold OEM only.

Brand Model name Size Total stack

Upper stack

Lower stack

Notes

AheadSet ISC 11⁄8" 10.0 6.0 4.0 Cartridge bearing

Cane Creek IS2 1" 8.0 7.0 1.0 Cartridge bearing

IS6 1" 8.0 7.0 1.0 Cartridge bearing

IS2 11⁄8" 8.0 7.0 1.0 Cartridge bearing

IS6 11⁄8" 8.0 7.0 1.0 Cartridge bearing

IS2 11⁄8" 17.0 16.0 1.0 Tall cover, cartridge bearing

IS6 11⁄8" 17.0 16.0 1.0 Tall cover, cartridge bearing

FSA Orbit IS 1" 8.2 7.2 1.0 Angular-contact cartridge bearing

Orbit IS 11⁄8" 8.2 7.2 1.0 Angular-contact cartridge bearing

TH IS-3 11⁄8" 8.2 7.2 1.0 R26 – 1⁄8" (45° head tube ream)

Tange Seiki IS22 1" 7.8 7.0 0.8 Cartridge bearing

IS22 11⁄8" 7.8 7.0 0.8 Cartridge bearing

IS22E 11⁄8" 7.8 7.0 0.8 Cartridge bearing

IS22LT 11⁄8" 12.8 12.0 0.8 Cartridge bearing

IS23 11⁄8" 9.5 7.5 2.0 Cartridge bearing

IST 11⁄8" 5.5 5.0 0.5 R20 – 5⁄32"

RECENT MODELS, STACK HEIGHTSCOMPATIBLE WITH CANE CREEK INTEGRATED SYSTEM HEAD TUBES

RECENT MODELS, STACK HEIGHTS (continued)

COMPATIBLE WITH CAMPAGNOLO HIDDENSET HEAD TUBES

Brand Model name Size Total stack

Upper stack

Lower stack

Notes

Campagnolo Record 1" 6.0 5.4 0.6 R22 – 5⁄32"

Chorus 11⁄8" 6.0 5.4 0.6 R28 – 1⁄8"

Chorus TTC 11⁄8" 12.0 11.4 0.6 R28 – 1⁄8"

Record 11⁄8" 6.0 5.4 0.6 R28 – 1⁄8"

Record TTC 11⁄8" 12.0 11.4 0.6 R28 – 1⁄8"

FSA Orbit CE 1" 9.6 8.6 1.0 Angular-contact cartridge bearing

Orbit CF 1" 10.5 9.5 1.0 Angular-contact cartridge bearing

Orbit CE 11⁄8" 9.5 8.6 0.9 Angular-contact cartridge bearing

Orbit CF 11⁄8" 10.4 9.5 0.9 Angular-contact cartridge bearing

Ritchey Logic Zero WCS Road

11⁄8" 10.0 9.0 1.0 Angular-contact bearing, drop-in*

Logic Zero Pro Road

11⁄8" 10.0 9.0 1.0 Angular-contact bearing, drop-in*

Logic Zero Comp Road

11⁄8" 7.0 6.0 1.0 Angular-contact bearing, drop-in*

* Ritchey’s way to say the bearing fits loosely into the head tube, and is not press fit.

Brand Model name

Size Total stack

Upper stack

Lower stack

Notes Head tube OD

Head tube ID

Ream angle

Upper bore depth

Lower bore depth

AheadSet ICBM 11⁄8" 8.0 5.0 3.0 Cartridge bearing, special for Schwinn n/a* ø 44.8 45° n/a* n/a*

Ritchey Logic Zero Pro MTB

11⁄8" 7.0 6.0 1.0 Angular-contact cartridge bearing, press fit

ø 50 ø 44.2 36° 5.8 6.8

Logic Zero Pro Road

11⁄8" 9.0 8.0 1.0 Angular-contact cartridge bearing, press fit

ø 48 ø 41.7 36° 5.8 6.8

Logic Zero Comp

11⁄8" 12.5 7.0 5.5 Angular-contact cartridge bearing, lip similar to semi-integrated designs

ø 50 ø 44.05 45° 7.0 7.0

Logic Zero Pro MTB

11⁄8" 9.0 8.0 1.0 Angular-contact cartridge bearing, drop-in†

ø 50 ø 44.2 45° 3.0 6.9

Logic Zero Comp MTB

11⁄8" 6.5 5.5 1.0 Angular-contact cartridge bearing, drop-in†

ø 50 ø 44.2 45° 3.0 6.9

TH Orbit I 1" 10.4 9.4 1.0 45° angular-contact cartridge bearing w/blue seal

ø 45 ø 41.2 45° 2.7 7.2

Orbit I 11⁄8" 10.4 9.4 1.0 45° angular-contact cartridge bearing w/blue seal

ø 45 ø 41.2 45° 2.7 7.2

No.23/TH 11⁄8" 10.4 9.4 1.0 R26 – 1⁄8" (36° head tube ream) ø 45 ø 41.7 36° 2.1 6.5

* Special Schwinn model from the late 1990s, missing data. † Ritchey’s way to say the bearing fits loosely into the head tube, and is not press fit.

UNIQUE MODELS NONSTANDARD DATA

12heaB_8Pb_eh.indd 22-23 8/20/04 10:17:05 AM

Page 24: Chapter12 Headsets

12-24 Sutherland’s 7th Edition 12-25Sutherland’s 7th Edition

HEADSETS

CHAPTER 12

HEADSETS

CHAPTER 12Threadless Semi-Integrated Threadless Semi-Integrated (continued)

ILLUSTRATIONS & DIMENSIONS ILLUSTRATIONS & DIMENSIONS (continued)

Notes■ JIS 1" standard

headset can be replaced with Professional 1" by milling the head tube and crown race seat to that standard.

■ Numbers in bold are target dimensions for the common Cane Creek Zero Stack.

■ See page 12-6 for comments on tolerance and target dimensions.

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12heaB_8Pb_eh.indd 24-25 8/20/04 10:17:06 AM

Page 25: Chapter12 Headsets

12-24 Sutherland’s 7th Edition 12-25Sutherland’s 7th Edition

HEADSETS

CHAPTER 12

HEADSETS

CHAPTER 12Threadless Semi-Integrated Threadless Semi-Integrated (continued)

ILLUSTRATIONS & DIMENSIONS ILLUSTRATIONS & DIMENSIONS (continued)

Notes■ JIS 1" standard

headset can be replaced with Professional 1" by milling the head tube and crown race seat to that standard.

■ Numbers in bold are target dimensions for the common Cane Creek Zero Stack.

■ See page 12-6 for comments on tolerance and target dimensions.

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12heaB_8Pb_eh.indd 24-25 8/20/04 10:17:06 AM

Page 26: Chapter12 Headsets

12-26 Sutherland’s 7th Edition 12-27Sutherland’s 7th Edition

HEADSETS

CHAPTER 12

HEADSETS

CHAPTER 12Threadless Semi-Integrated (continued) Threadless Semi-Integrated (continued)

Notes■ Stack Heights are

rounded to the nearest millimeter.

■ Numerous AheadSet branded headsets are sold OEM only.

■ Bearing balls in retainers are shown in Notes column as R0 – ‰" with 0 = number of balls & ‰" = ball size (example: R20 – 5⁄32"). If number of balls is unknown, comments show ‰" balls in retainer.

RECENT MODELS, STACK HEIGHTS RECENT MODELS, STACK HEIGHTS (continued)

COMPATIBLE WITH CANE CREEK ZERO STACK HEAD TUBES

Brand Model name Size Total stack

Notes

AheadSet ZSC 11⁄8" 14 Cartridge bearing

ZSR 11⁄8" 13 5⁄32" balls in retainer

Cane Creek Zero Stack 6 1" 13 Cartridge bearing

Zero Stack 2 11⁄8" 14 Cartridge bearing

Zero Stack 2 11⁄8" 24 Cartridge bearing

Zero Stack 6 11⁄8" 14 Cartridge bearing

Zero Stack 6 11⁄8" 24 Cartridge bearing

FSA Orbit ZS 1" 14 Angular-contact cartridge bearing

Orbit ZS 11⁄8" 14 Angular-contact cartridge bearing

Orbit ZR-2 11⁄8" 9 Chris King type radial bearing

Ritchey Logic Zero WCS 11⁄8" 13 Angular-contact cartridge bearing, ø 41 by 45° x 45°. Old version had bearing ø 41 by 36° x 36°

Logic Zero Pro 11⁄8" 13 Angular-contact cartridge bearing, ø 41 by 45° x 45°. Old version had bearing ø 41.5 by 36° x 36°

Tange Seiki ZST 1" 9 R16 – 5⁄32"

ZST2 1" 10 Angular-contact cartridge bearing

ZST 11⁄8" 9 R20 – 5⁄32"

ZST2 11⁄8" 12 Angular-contact cartridge bearing

ZSTE 11⁄8" 9 R20 – 5⁄32"

TH No.11A 1" 15 Semi-cartridge

No.9AM 1" 11 Angular-contact cartridge bearing

Orbit Z 1" 13 Angular-contact cartridge bearing

ZST 1" 9 R16 – 5⁄16"

No.11 11⁄8" 15 Semi-cartridge

No.9M 11⁄8" 11 Angular-contact cartridge bearing

Orbit Z 11⁄8" 11 Angular-contact cartridge bearing

ZST 11⁄8" 9 R20 – 5⁄16"

WTB Inner Peace C 11⁄8" 10 Cartridge bearing

MODELS COMPATIBLE WITH CHRIS KING PERDIDO HEAD TUBES

Chris King Perdido size

Brand Model name Size Total stack

Notes Head tube OD

Head tube ID

Upper bore depth

Lower bore depth

FSA Orbit ZR-2 11⁄8" 9 Radial bearing, Chris King compatible size

ø 49.5 ø 44.45 >8 >10

Chris King Perdido 11⁄8" 7 Cartridge bearing ø 49.5 ø 44.45 >8 >10

UNIQUE SIZES

11⁄8" fork with ø 47 head tube

Brand Model name Size Total stack

Notes Head tube OD

Head tube ID

Upper bore depth

Lower bore depth

Ritchey Logic Zero Plus Pro

11⁄8" 13 Angular-contact cartridge bearing. Cup has unusual 36° contact angle inside head tube like some less common integrated designs.

ø 50 ø 44 7.2 7.2

TH No.10AY 11⁄8" 7 R26 – 1⁄8" ø 47 ø 41.4 15 15

12heaB_8Pb_eh.indd 26-27 8/20/04 10:17:08 AM

Page 27: Chapter12 Headsets

12-26 Sutherland’s 7th Edition 12-27Sutherland’s 7th Edition

HEADSETS

CHAPTER 12

HEADSETS

CHAPTER 12Threadless Semi-Integrated (continued) Threadless Semi-Integrated (continued)

Notes■ Stack Heights are

rounded to the nearest millimeter.

■ Numerous AheadSet branded headsets are sold OEM only.

■ Bearing balls in retainers are shown in Notes column as R0 – ‰" with 0 = number of balls & ‰" = ball size (example: R20 – 5⁄32"). If number of balls is unknown, comments show ‰" balls in retainer.

RECENT MODELS, STACK HEIGHTS RECENT MODELS, STACK HEIGHTS (continued)

COMPATIBLE WITH CANE CREEK ZERO STACK HEAD TUBES

Brand Model name Size Total stack

Notes

AheadSet ZSC 11⁄8" 14 Cartridge bearing

ZSR 11⁄8" 13 5⁄32" balls in retainer

Cane Creek Zero Stack 6 1" 13 Cartridge bearing

Zero Stack 2 11⁄8" 14 Cartridge bearing

Zero Stack 2 11⁄8" 24 Cartridge bearing

Zero Stack 6 11⁄8" 14 Cartridge bearing

Zero Stack 6 11⁄8" 24 Cartridge bearing

FSA Orbit ZS 1" 14 Angular-contact cartridge bearing

Orbit ZS 11⁄8" 14 Angular-contact cartridge bearing

Orbit ZR-2 11⁄8" 9 Chris King type radial bearing

Ritchey Logic Zero WCS 11⁄8" 13 Angular-contact cartridge bearing, ø 41 by 45° x 45°. Old version had bearing ø 41 by 36° x 36°

Logic Zero Pro 11⁄8" 13 Angular-contact cartridge bearing, ø 41 by 45° x 45°. Old version had bearing ø 41.5 by 36° x 36°

Tange Seiki ZST 1" 9 R16 – 5⁄32"

ZST2 1" 10 Angular-contact cartridge bearing

ZST 11⁄8" 9 R20 – 5⁄32"

ZST2 11⁄8" 12 Angular-contact cartridge bearing

ZSTE 11⁄8" 9 R20 – 5⁄32"

TH No.11A 1" 15 Semi-cartridge

No.9AM 1" 11 Angular-contact cartridge bearing

Orbit Z 1" 13 Angular-contact cartridge bearing

ZST 1" 9 R16 – 5⁄16"

No.11 11⁄8" 15 Semi-cartridge

No.9M 11⁄8" 11 Angular-contact cartridge bearing

Orbit Z 11⁄8" 11 Angular-contact cartridge bearing

ZST 11⁄8" 9 R20 – 5⁄16"

WTB Inner Peace C 11⁄8" 10 Cartridge bearing

MODELS COMPATIBLE WITH CHRIS KING PERDIDO HEAD TUBES

Chris King Perdido size

Brand Model name Size Total stack

Notes Head tube OD

Head tube ID

Upper bore depth

Lower bore depth

FSA Orbit ZR-2 11⁄8" 9 Radial bearing, Chris King compatible size

ø 49.5 ø 44.45 >8 >10

Chris King Perdido 11⁄8" 7 Cartridge bearing ø 49.5 ø 44.45 >8 >10

UNIQUE SIZES

11⁄8" fork with ø 47 head tube

Brand Model name Size Total stack

Notes Head tube OD

Head tube ID

Upper bore depth

Lower bore depth

Ritchey Logic Zero Plus Pro

11⁄8" 13 Angular-contact cartridge bearing. Cup has unusual 36° contact angle inside head tube like some less common integrated designs.

ø 50 ø 44 7.2 7.2

TH No.10AY 11⁄8" 7 R26 – 1⁄8" ø 47 ø 41.4 15 15

12heaB_8Pb_eh.indd 26-27 8/20/04 10:17:08 AM

Page 28: Chapter12 Headsets

12-28 Sutherland’s 7th Edition 12-29Sutherland’s 7th Edition

HEADSETS

CHAPTER 12 CHAPTER 12Threaded Semi-Integrated (continued)Threaded Semi-IntegratedHEADSETS

Note■ Bearing balls in

retainers are shown in Notes column as R0 – ‰" with 0 = number of balls & ‰" = ball size (example: R20 – 5⁄32"). If number of balls is un-known, comments show ‰" balls in retainer.

ILLUSTRATIONS & DIMENSIONS ILLUSTRATIONS & DIMENSIONS (continued)

Notes■ Numbers in

bold are target dimensions.

■ See page 12-6 for comments on tolerance and target dimensions.

■ This style of headset is fairly rare and made by few companies.

■ Use with quill stem (not shown).

RECENT MODELS, STACK HEIGHTS

Brand Model name Size Head tube ø Total stack Notes

TH TH-850AL 11⁄8" ø 50 18 R25 – 1⁄8"

TH-805ST 11⁄8" ø 50 19 R20 – 5⁄32"

TH-806AL 11⁄8" ø 50 19 R26 – 5⁄32"

TH-828ST 11⁄8" ø 47 18 R26 – 1⁄8"

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12heaB_8Pb_eh.indd 28-29 8/20/04 10:17:10 AM

Page 29: Chapter12 Headsets

12-28 Sutherland’s 7th Edition 12-29Sutherland’s 7th Edition

HEADSETS

CHAPTER 12 CHAPTER 12Threaded Semi-Integrated (continued)Threaded Semi-IntegratedHEADSETS

Note■ Bearing balls in

retainers are shown in Notes column as R0 – ‰" with 0 = number of balls & ‰" = ball size (example: R20 – 5⁄32"). If number of balls is un-known, comments show ‰" balls in retainer.

ILLUSTRATIONS & DIMENSIONS ILLUSTRATIONS & DIMENSIONS (continued)

Notes■ Numbers in

bold are target dimensions.

■ See page 12-6 for comments on tolerance and target dimensions.

■ This style of headset is fairly rare and made by few companies.

■ Use with quill stem (not shown).

RECENT MODELS, STACK HEIGHTS

Brand Model name Size Head tube ø Total stack Notes

TH TH-850AL 11⁄8" ø 50 18 R25 – 1⁄8"

TH-805ST 11⁄8" ø 50 19 R20 – 5⁄32"

TH-806AL 11⁄8" ø 50 19 R26 – 5⁄32"

TH-828ST 11⁄8" ø 47 18 R26 – 1⁄8"

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12heaB_8Pb_eh.indd 28-29 8/20/04 10:17:10 AM

Page 30: Chapter12 Headsets

Sutherland’s 7th Edition12-30

HEADSETS

CHAPTER 12 Notes

12heaB_8Pb_eh.indd 30 8/20/04 10:17:11 AM