Shimano M315 crankset, double chainring with 22/36 tooth ratio. 7/8 speed gearing ratio. 170mm crank arm length, with square taper bottom bracket. Hyperdrive SG-X chainrings efficient for fast and smooth gear shifting. For use with 123mm square taper bottom brackets.
- Shimano M315 Altus Crankset
- Double 7/8 Speed Ratio
- 22/36 Tooth Ratio
- 170mm Crank Arm Length
- Square Taper Cranks
- No Chainguard
- HyperDrive SG-X Steel Chainrings
- For Use with 123mm Bottom Bracket
- Includes Left Hand Crank Arm
- Black Finish
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