SHIMANO DURA-ACE - Bottom Bracket - Threaded - HOLLOWTECH II - 68/70 mm shell width
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 | ✔ |
| Threaded bottom bracket shell width (mm)|68 | ✔ |
|---|---|
| Threaded bottom bracket shell width (mm)|70 | ✔ |
| Small ball bearing | ✔ |
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