Shimano Altus FC-M311 Cranksets feature aluminum crankarms with steel SG-X chainrings for reliable shifting.Hyperdrive integrated SG-X chainrings provide precise and reliable front shiftingProven 3-pc. design187.9 Q-factor
Shimano Altus FC-M311 Cranksets feature aluminum crankarms with steel SG-X chainrings for reliable shifting.
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