Shimano FC-M315-B2 Hollowtech-II 175mm 2-Speed 22-36T CranksetThe SHIMANO FC M315 B2 mountain bike crank delivers precise and reliable shifting for 2x7 and 2x8 speed drivetrains. Precise and reliable shifting SG X chainrings Consistent off road front shifting HYPERDRIVE Chainline: 51. 8 mm
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