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STEERING
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SEATING
WHEELS
MISC.
Shimano SM-BB72-41B is a press fit bottom bracket. Small ball bearings help save on weight. This Hollowtech II bottom bracket also has a shaft diameter of 24 mm, which has proven to be optimal in terms of stiffness and rotational efficiency.
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SHIMANO SEALED PF24 SM-BB72-41B 86MM BOTTOM BRACKET