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Mountain Bike Right Left Crank Arms Single Crank Ring Set 170MM 104 BCD Aluminum Alloy Bike Crankset for 891011 Speed
Mountain Bike Right Left Crank Arms Single Crank Ring Set 170MM 104 BCD Aluminum Alloy Bike Crankset for 891011 Speed
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104mm BCD.;170mm length for crank arm.; tapered crank arms.;Compatible with 8 / 9 / 10 / 11 speed.;Aluminum alloy material for light weight and strong strength.;Suitable for most mountain bikes.;Come with a 4-bolt chainring.Narrow&wide increase chain retention and wear ,reduce friction and noise.