Inner bearing with small balls for low weight
Highly developed seal design for smooth rotation
Field of application | Road |
Shaft mount | Hollowtech II |
Housing width | 68 mm |
weight | 65 g |
thread | BSA |
groupset | Dura-Ace |
Abbreviation | BB-R91000 |
Part no. | IBBR9100B |
Model year | 2016 |
Product type | Bottom bracket |