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6mm and 31
better power transfer
saving weight and providing a clean interface
quiet action with a rock-solid feel under load
Wheels Manufacturing BB30 Bottom Bracket Adaptor for Hollowtech II Cranks Brake Levers 6mm and 31Is the BB30 Adaptor Right for Your Shimano Cranks? The Wheels Manufacturing BB30 Bottom Bracket Adaptor solves one of the most common frame to drivetrain compatibility headaches in cycling: running Shimano Hollowtech II cranks in a BB30 frame without introducing creaks or play. Machined from engineering grade Delrin, the inserts press cleanly into the BB30 shell and provide a precise bore for a standard threaded bottom bracket, giving you the
US$ 32.00
US$ 15.00
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