Bike Crank,Crank Arms Left Crank 104 Bcd Alloy Crankset 8/9/10/11 Speed Arms Crank Set 170mm 104 Bcd Arms With 170mm Crank Set 170mm Mountain Bike Left Arms) Speed Jinmie Crank Rookin
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Aluminum alloy material for light weight and strong strength. 170mm length for crank arm. Square tapered crank arms. Suitable for most mountain bikes. Compatible with 8 / 9 / 10 / 11 speed.