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SHIMANO DURA-ACE - Bottom Bracket - Threaded - HOLLOWTECH II - 68/70 mm shell widthWith an advanced seal construction for smoother rotation and small ball bearings to minimize weight, the SHIMANO DURA-ACE bottom bracket is offered in both pressfit and thre
With an advanced seal construction for smoother rotation and small ball bearings to minimize weight, the SHIMANO DURA-ACE bottom bracket is offered in both pressfit and threaded options.
| MODEL NO | BB-R9100 |
| SERIES | DURA-ACE R9100 Series |
| Average Weight | 65 |
| HOLLOWTECH II bottom bracket_Threaded bottom bracket type | |
| Small ball bearing | |
| Threaded bottom bracket shell width (mm)_68 | |
| Threaded bottom bracket shell width (mm)_70 |
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