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Coaster Bike Patterns

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Page 1: Coaster Bike Patterns
Page 2: Coaster Bike Patterns

wheel pattern - Part A(cut from 3/4” plywood)

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wheel pattern - Part B(cut from 3/4” plywood)

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frame pattern - Part A(cut from 1/2” plywood)

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frame pattern - Part B(cut from 1/2” plywood)

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frame pattern - Part C(cut from 1/2” plywood)

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seat support pattern(cut from 3/4” plywood)

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seat pattern(cut from 1/2” plywood)

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front fork pattern - Part A(cut from 3/4” plywood)

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front fork pattern - Part B(cut from 3/4” plywood)

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this edge will need to be removed toallow the seat to fit flush to the support

3 3/4”7 1/4”

5 1/2”

1/4” ID X 3/8” OD bushing

this piece is part of the seat support(each side has a 2 degree bevel cut)

it would probably help toadd a wedge right here

3” X 3/8” X 20 bolt with countersink-able head(any excess threads will need to be cut off)

3/8” X 20 wood insert nut

1/4” X 20 wood insert nuts

8 1/2” X 1/4” X 20 bolt(the head will be covered by the handle bar)

3/4” X 3/8” X 20 bolts withcountersink-able head

cut sections of 1 1/4” dowel touse as a spacers between thewheel and the frame.

The Bike Frame

(These three wedge-shaped pieces are not in the patterns because they’reessentually straight cuts with beveled edges (to match the angle formedby the two halves of the frame.)

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8 1/2” X 1/4” X 20 bolt(the head will be covered by the handle bar)

1/4” X 20 wood insert nut

5” X 3/8” X 20 bolt with countersink-able head(the excess threads will need to be cut off)

3/8” X 20 wood insert nut

a section of the 1 1/4” dowel will need to beflattened to fit on top of the front forks

1 5/8”

1 3/4”

1 5/8”

17 3/4”

5 1/2” 7 1/2”13”

The Front Fork

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3/8” ID bearing

I suggest gluing a 2” disk ofthin plywood (luan) to eachside of the wheel to hold thebearing in place.

The Wheels