(YC-27BB / YC-27) Bottom Bracket Wrench YC-27BB is designed for use on installation and removing of B.B. Fits Shimano Hollowtech II B.B. YC-27 Dust cap wrench. For 8 internal splines of the crank arm dust cap.
(YC-25BB/YC-30BB) Bottom Bracket Removal Tool YC-25BB Press-fit BB removal tool. For Shimano Press-fit BB use. YC-30BB Designed for BB 30 bearing removal. YC-30BB can be used with the handle of YC-25BB.
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