SHIMANO ULTEGRA - Bottom Bracket - Press Fit - HOLLOWTECH II - 86.5 mm shell width
With reliable SHIMANO bearings and seals, the SHIMANO ULTEGRA bottom bracket has a long service life.
- Optimum power transfer
- Lightweight with maintain efficiency
- 14 g lighter weight and half the friction of the SM-BB6700, while maintaining the same durability
- Weight: 69 g