Shimano Dura Ace 7800 Bottom Bracket
The Shimano Dura Ace 7800 BB features bearings that are spaced wider apart and axle and bearings which are larger. The net result, of course, is a more effective load distribution, increased rigidity and stability, as well as longer service life.
Features
- Minimal bearing interface for smoother rolling
- Optimum balance of lightweight and rigidity
- Q-factor remains same as FC-7701/BB-7700
- Weight: 111 g