Shimano Dura-Ace R9100 Hollowtech II Italian Bottom Bracket. Shimano Dura-Ace BB92 BB9000 Hollowtech II Bottom Brackets
- TECH SPECS
| Bottom Bracket Shell I.D. | 36 |
| BB/Frame Interface | Italian |
| BB Shell Width (mm) | 70 |
| Weight | 65 |
| Spindle Interface Type | Shimano Hollowtech II |
| Defined Color | Black |
