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Shimano Altus FC-M311 Crankset - 170mm, 7/8-Speed, 48/38/28t, Riveted, Square Taper JIS Spindle Interface, Black
Shimano Altus FC-M311 cranksets feature aluminum crankarms with steel SG-X chainrings for smooth and reliable shifting.
Hyperdrive integrated SG-X steel chainrings provide precise and reliable front shifting
Proven 3-pc. design with sturdy aluminum crank arms (bottom bracket sold separately)
50mm Chainline / 187.9mm Q-factor