Shimano SHIMANO ALTUS FC-M311-L, FOR REAR 7/8-SPEED, 170MM, 42T/32T/22T BLACK | Cartersville Bicycle Service & Supply
Shimano 24S Mountain bike FC M311 Bicycle Crank & ChainwheelShimano 24S Mount suitable for 6/7/8 cassete 18/21/24 speed bicycles|bicycle crank|mountain bike crankbike crank - AliExpress