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Shimano Dura Ace BB-R9100 Bottom Bracket
Hollowtech II bottom bracket with small ball bearings for lightweight.
| * To check in store availability: |
| Select variant below then view stock | here |
- Hollowtech II bottom bracket with small ball bearings for lightweight
- Advanced seal construction for smoother rotation
- Available in 68mm BSA or 70mm Italian
- Compatible with all road Hollowtech II cranks
