Shimano Dura Ace 7900 BB Cups
- The bottom bracket bearings for the HollowTech II FC-7900 crankset, which is he 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 FC-7900 chainset.
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