【Material】The Bicycle crank arms are made of Forged Alloy 6061, this crank arm is sturdy and durable,High strength, high hardness, not easy to deform.
【Size】This Crank Arm Length is available in 10 sizes(89MM/102MM/114MM/127MM/140MM/152MM/160MM/165MM/170MM/175MM/)Shorter cranks for extreme sports enthusiasts,Before purchasing this product, please make sure that the size of this product is consistent with the size you need.
【Spindle Interface Type】Diamond Hole. Please check if the orientation of your crank is Diamond Hole. Keep both left and right things having the same hole.Diamond Hole Diameter is 12cm.
【Installation Tips】This crank arm is divided into left and right side, please pay attention to the left and right side when installing, the crank arm is written L and R, L is installed on the left side, R is installed on the right side. L is installed on the left side, R is installed on the right side. If you install it wrong, it will not work.Special attention:one pair Crank Arm can only be used on electric bicycles,1pc crank arm can be used on MTB,ROAD BIKE,FOLIDING BIKE,Cargo,City Bike,Ebike.
【Package List】2xCrank Arms(left crank arm +right crank arm),Crank Bolts,Crank arm only for Ebike,Mid Mounted Motor,Torque.