Damage
"It's a pity that it doesn't have the same external dimension as the old one, because the aesthetics aren't great".
Couldn't load pickup availability

Intended for 70 mm frames (Italian standard), the bottom bracket SHIMANO Dura-Ace 9100 Italian features even smoother, more sealed bearings than the previous generation.
The size of the bearings has also been revised to make them lighter.
| A - Diameter (mm) | B - Width (mm) | Assembly | Standard |
| 34,8 | 68 | screw-on | BSC / BSA |
| 34,8 | 73 | screw-in | BSC / BSA |
| 34,8 | 83 | screw-in | BSC / BSA |
| 34,8 | 100 | screw-in | BSC / BSA |
| 27 | 95,5 | insert | BB 96 (Trek) |
| 41 | 92 | insert | PF 92 |
| 42 | 68 | insert | BB 30 |
| 42 | 73 | insert | BB 30 |
| 46 | 68 | insert | PF 30 |
| 46 | 73 | insert | PF 30 |
![]() |
|||
Ref: 7970330345638
Optimum sealing
Maximum fluidity
Lightweight
Axis diameter : 24 mm
Bearing material : Aluminum
Shaft type : Through shaft
Housing type : Italian (70 mm)
Overall rating: 4.6666665 / 5 from 3 reviews.
Review topics: [].
"It's a pity that it doesn't have the same external dimension as the old one, because the aesthetics aren't great".
"70 mm center-to-center Italian thread (not straight on either side) Quiet and lightweight."
"SHIMANO product, what more can I say, and trouble-free mounting with the adapter supplied."