170mm Crank Set: Crank Arms Lengt is 170mm(6.7in), Suitable for Snow Beach Bike/Fat Bike; Axle: 100(176mm)/120(192mm).
104BCD Chainring: 32T/34T/36T/38T/40T/42T single speed round chainring. The alternate design of narrow and wide teeth can effectively prevent the chain from falling off. 32T-40g/34T-48g/36T-59g/38T-71g/40T-80g/42T-91g.
Hollow Integrated Crank Arm Set: Made of Aluminum Alloy Material 6061, Lightweight, High strength and durable, high hardness, not easy to deform, Frosting process Anodized.
Package list and Easy to install: 1xCrankset (left crank arm +right crank arm), 1xChainring, 4xBolts, 1xCrank Screw, 1xtool. This crank arm is divided into left and right side, please pay attention to the left and right side when installing, Very quick.