Description
Freewheel for comfortable and efficient switching for all riders. The internal thread has high accuracy, smooth rotation and easy maintenance. Has higher wear resistance, high strength, no deformation, wear resistance and durability. Long lasting. A unique design of the mountain bike sprocket can control the speed change function well. Hollow design reduces weight and strain on long term riding. The flywheel offers a fast driving speed with less effort and does not produce too much noise.