Shimano BB91-41A Press Fit Bottom Bracket
Shimano BB91-41A Press Fit Bottom Bracket
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Complete pressfit bottom bracket assembly for Shimano HollowTech II MTB chainset featuring cups made from fibre reinforced polymer material that reduces the risk of frame noise and damage.
- Set includes left and right hand cups, 2.5mm spacer, inner cover, and inner O-rings
- Sealed cups keep out dirt and water
- Maintenance free
- Compatible with 89.5mm (with 2.5mm spacer) and 92mm shells
- 41mm cup diameter
- Easy press-fit installation
Product Information
Product Information
Shipping & Returns
Shipping & Returns

Shimano BB91-41A Press Fit Bottom Bracket
Shimano BB91-41A Press Fit Bottom Bracket
Shimano BB91-41A Press Fit Bottom Bracket
Ā
Complete pressfit bottom bracket assembly for Shimano HollowTech II MTB chainset featuring cups made from fibre reinforced polymer material that reduces the risk of frame noise and damage.
- Set includes left and right hand cups, 2.5mm spacer, inner cover, and inner O-rings
- Sealed cups keep out dirt and water
- Maintenance free
- Compatible with 89.5mm (with 2.5mm spacer) and 92mm shells
- 41mm cup diameter
- Easy press-fit installation
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Shimano BB91-41A Press Fit Bottom Bracket
Ā
Complete pressfit bottom bracket assembly for Shimano HollowTech II MTB chainset featuring cups made from fibre reinforced polymer material that reduces the risk of frame noise and damage.
- Set includes left and right hand cups, 2.5mm spacer, inner cover, and inner O-rings
- Sealed cups keep out dirt and water
- Maintenance free
- Compatible with 89.5mm (with 2.5mm spacer) and 92mm shells
- 41mm cup diameter
- Easy press-fit installation












