Cranksets

- Forged steel - 24 TPI

Shimano Altus M311 cranksets provide durability and reliable shifting for triple chainring drivetrains. - Hyperdrive SG-X chainrings - 7/8-speed compatible - Spindle interface type: Square Taper JIS

Problem Solvers Crank Arm Fixing Bolts - 8mm - Sold as a pair