Bike Crank,Arms With 170mm Left Crank Crankset 8/9/10/11 Speed Bike Crank Alloy Mtb Crankset Mountain Bike Left 170mm 104 Bcd Qahm Alloymtb Arms Crank Set Crank Rusuo Mountain Qudai
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Aluminum alloy material for light weight and strong strength. 104mm BCD. Compatible with 8 / 9 / 10 / 11 speed. 170mm length for crank arm. Square tapered crank arms.