- The Alfine chainset is a lightweight sleek 2-piece design using the proven external bottom bracket system
- 2-piece design is both lightweight and stiff for optimum power transfer
- Built-in single-sided chain guard
- 170 mm crank arm length
- Chainring is for use with 9-speed chains and CS-S500 rear sprocket
- BS thread bottom bracket included for 42.7 mm chain line
- 5-arm 130 PCD
Shimano
Alfine - FC-S501 - 2-piece chainset
£50.00
£149.99
Product Details
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