Shimano SM-BB93 Bottom Bracket Xtr

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SM-BB3 bottom bracket for Shimano XTR Hollowtech II cranksets. Light weight to offset weight disadvantage of drivetrain and with better sealing performance for smoother rotation. I ncluding BSA bottom bracket cups with right and left bearing shells and 3 spacers. Specifications Size: 68-73 mm Color: black Weight: 77 grams Show more