PF30A24/BB30A24/BSABB30
PT-6638D
BSA BB30
BC1.37" * 24T
Compatible with BB30 crank / BSA frames
Width: 68 / 73mm
Bearings: Sealed cartridge bearings 42 * 7 (R433)
Material: Forged & CNC machined AL6061 cups
Finish: Anodized color available
Option PT-6638DCB Ceramic bearings
PT-6638D Drawing download