The Shimano Altus line is Shimano's budget friendly mountain groupset, bringing time-tested Shimano quality to the entry level cyclist. The Altus M311 Crankset is an excellent replacement crank for entry-level bikes and includes a built in chainguard to keep pants and shoelaces out of the drivetrain and grease and grime off your clothing.
Shimano Fc-m311 Front Crankset 170mm 42-32-22 Black W/cg
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