170mm Bike Crankset 130BCD 50T Single Chainring for 9/11 Speed MTB (Black) ✅
170mm Bike Crankset 130BCD 50T Single Chainring Bike CrankArm For 9/10/11 Speed Chains Mountain Bike(black crank +50T). 【Perfect Specification】The crank has an armlength of 170mm, BCD of 130mm, and a square hole spindle interface.