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FrameRequirement

MTB components

Rear derailleur

1. Direct mount dropout dimensionsNote1:

Horizontal Line D goes thru BB center and FH center.

Note2:

The drawings are for Rigid frame, but in case of rear suspension type, Line D should be determined by ridingheight such as 1G sag. Line D needs to go thru BB center and FH center, also.

Note3:

SM-AX75,60 are not recommended for downhill usage.

1-1. Dimensions for standard rear derailleur

< RD-M986 / M981 / M786 / M781 / M675 / M670 >

< QR type >

31

t

15mm t 16mmHRB78

8+00.2

32.2

23.5

1.5

M10x1.0-6H

:MARKC1-AREA(Both Side)

R11-R12

R7.5(MAX

R8)

MAX R2.5

25

659.4MIN

Line D

311

10

32.21

45

MAX LINE

8+00.2

C1 C1

10

+03

+4

0

R12

.5

R25

No object should besurface of this area

NEW

NEW

NEW

NEW

NEW

NEW

FrameRequirement

version 1.0 Last updated: Feb 6, 2012

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FrameRequi rement

< E-thru type (O.L.D 142 mm) >

R12

.5

R25

31

32.21

Line D

311

32.21

45

+4

0

23.5

1.5

MAX LINE

D

A

CB

M10x1.0-6H

:MARKC1-AREA(Both Side)

R11-

R12

R7.5(MAX

R8)

MAX R2.5

25

65+03

9.4MIN MAXR15

MAX

R15

Area(90

)

19.2

(Requlre

dFlat

Surface

Area)

C1 C1

SECTION A-B-C-DHRB78

8+00.24.5

+01

3.5+00.1

12+0.2

+0.0

5

19+0.1

0

9

5MINM4

t1*

C0.5

C0.5

No object should besurface of this area

No object should besurface of this area

*Please refer to page 19 for more rear E-thru system information.

FrameRequi rement

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FrameRequirement

1-2. Dimensions for SAINT, ZEE (DH mode and DH spec)

These dimensions are for DH mode and DH spec for close ratio cassette. (Smaller than 11-28T)Please refer to page 64 for more information.

Note: This dimension of DH mode / DH spec is different from FR mode / FR spec (Standard MTB cassette )

< Thru Axle type (O.L.D 135 / 150 mm) >

10

or12

8.1

MIN

t

15mm t 16mmHRB78

8+00.2

46.6 1

.5M10x1.0-6H

R11-R12R7.5

(MAXR8)

MAX R2.5

2.4

:MARK

C1-AREA(Both Side)

Line D

40.

27

1

29.141

MAX LINE

8+00.2

C1 C1

87.6+03

60 +

40

R12

.5

R25

No object should besurface of this area

40.

27

1

29.141

FrameRequirement

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FrameRequi rement

< Thru Axle type (O.L.D 142 mm) >

R25

R12

.5

40.2

71

29.141

Line D

40.2

71

29.141

60 +

40

87.6

+03

46.6

1.5

MAX LINE

MAX LINE

D

A

CB

M10x1.0-6H

:MARKC1-AREA(Both Side)

R7.5(M

AXR8)

MAX R2.5

2.4

MAXR

15

19.2

(Requlre

dFlat

Surface

Area)

C1 C1

SECTION A-B-C-DHRB78

8+00.24.5

+01

3.5+00.1

12+0.2

+0.0

5

19+0.1

0

9

5MIN

M4

t1*

C0.5

C0.5

11.5

+0

1

12

R11-R12

8.1

MIN

MAX

R15A

rea(90

)

No object should besurface of this area

No object should besurface of this area

FrameRequi rement

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FrameRequirement

2. Rear E-thru system

2-1. Dropout dimensions

(RD Hanger)

19

+0.1

-0

HUB R/H SIDE SURFACEHUB L/H SIDE SURFACE

t13.5

+0-0.1

M4

7~8

3.5+0-0.1

t2

O.L.D. 142 0.5

C0.5

5 MIN12

+0.2

+0.05

12+0.2

+0.05

C0.5

C0.5

C0.5

R2.5

1MAX

9*

*

*t1+t2=16 0.5

Required flat surface area

19.2

REQUIRED FLAT SURFACE AREA

2-2. Other information about E-thru rear freehub (FH-M988/WH-M988-R12/FH-M788/WH-M788-R12/FH-M678/WH-MT68-R12/WH-MT66-R12-29) 12 mm thru axle

Total dropout thickness should be less than 16 0.5mm . Charts SM-AX75 adjust nut keeper section is design example . SM-AX75 specification is lever axle with adjust nut set . SM-AX75 total axle length is 171mm specification only . About clearance between the smallest sprocket (top gear) and dropout is explained at page 6. Dropout configuration and SHIMANO SHADOW RD dropout dimension are explained at page 20 and 21 Disc

brake mount dimensions are explained at page 10. There are variety of frame design as well as tire width, so when deciding frame dimensions, please be put

attention of rear wheel install and removal operation . Upper drawing shows an example of dropout and nut keeper.

Please design and consider for dropout and nut keeper as a whole by your frame design. Please design nut keeper section which doesnt give side force to adjust nut . If adjust nut is given unnecessary side force, SM-AX75 screwing and rescrewing operation will be heavy .

FrameRequirement

version 1 0 Last updated: Feb 6 2012