Bottom bracket cups for Shimano Ultegra FC-6800 Hollowtech II cranksets.

14g lighter weight and half the friction of the SM-BB6700. Bottom bracket bearing cups with smaller than before. 


Material: Steel, Aluminium

Case width: 68 / 70mm

Bracket, length of axle: Hollowtech II

Required Tool: Shimano TL-FC25, TL-FC32, TL-FC33, TL-FC36 and TL-FC37

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