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Shimano SM-BB72-41B Bottom Bracket

SHIMANO ULTEGRA - Bottom Bracket - Press Fit - HOLLOWTECH II - 86.5 mm shell width
Ordered before , delivered tomorrow! You got: 03:39 hours


Optimum power transfer

Lightweight maintains efficiency

DURA-ACE proven 4-arm design: Same stiffness and lighter weight

14 g lighter weight and half the friction of the SM-BB6700, while maintaining the same durability

Variety choice of gearing: 53-39T/52-36T/50-34T/46-36T

Weight: 69 g