Shimano - Altus FC-M311 Crankset - 170mm, 7/8-Speed, 48/38/28t, Riveted, Square Taper JIS Spindle Interface, Black - Black

Shimano Altus FC-M311 Cranksets feature aluminum crankarms with steel SG-X chainrings for reliable shifting. Features Hyperdrive integrated SG-X chainrings provide precise and reliable front shifting Proven 3-pc. design 187.9 Q-factor Chainguard model Specifications Number of Chainrings: Triple Color: Black Chainline/Hub Compatibility: 135/142 MTB Hubs Pedal Spindle: 9/16" Crank Intended Use: Mountain Crank Length (mm): 170 Rings: 28/38/48 , 48/38/28 Spindle Interface Type: Square Taper JIS Drivetrain Speeds: 7 , 8 Defined Color: Black Chainring BCD: Riveted BB Included: No Manufacturer Part Number: EFCM311C888CL