Shimano SM-BB71 PressFit Bottom Bracket 86.5mm
The Shimano SM-BB71 PressFit Bottom Bracket 86.5mm is a complete Ultegra press fit bottom bracket assembly for Shimano HollowTech II road cranks.
The cups are sealed to keep out rain moisture and debris and constructed from fibre reinforced polymer material to reduce the chance of frame creaks.
This bottom bracket has a 41mm cup diameter and is compatible with 86.5mm shells.
Features
- Cups are made from fibre reinforced polymer material which reduces the risk of frame noise and damage
- Set includes left and right hand cups, inner cover, and inner O-rings
- Sealed cups keep out dirt and water
- Maintenance free
- Compatible with 86.5 mm shells
- 41 mm cup diameter
- Easy press-fit installation
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