Wheels Freewheel and Bottom Bracket Cup Shims, 10/Bag
Spacers for fine tuning freewheel and cassette placement or adjusting chainline on frames with B.S.A External-Type Bottom Bracket Cups.
- Fits between frame and drive-side cup (cup must have lip) to adjust chainline or crank clearance
Wheels Freewheel and Bottom Bracket Cup Shims, 10/Bag
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