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Shimano

Shimano Dura Ace Bottom Bracket, BB9000 70mm

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689228403741
These are the Shimano Dura-Ace 9000 Hollowtech II 68mm Italian Thread Bearing Cups. The bottom bracket bearings for the HollowTech II FC9000 crankset, which is the ultimate crankset for stiffness whilst keeping weight low for performance riding and racing. Minimal bearing interface gives superbly smooth rotation. Distinctive style that exudes quality and perfection. Required for installation of FC9000 chainset.
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