Shimano XTR SM-BB3 bottom bracket for Shimano XTR FC-M980, FC-M985, FC-M9000 and FC-M9020 Hollowtech II - cranksets. Light weight to offset weight disadvantage of drivetrain and with better sealing performance for smoother rotation.
| Specification | |
|---|---|
| By product | Bottom brackets |
| Frame width | 68 mm |
| Spindle fitting | Hollowtech II |
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