100% brand new and high quality.36 teeth electric bike motor gear, nylon teeth planetary gear, suitable for Bafang motor.Made of high quality materials.High Wear-resistant and excellent durability.Strict quality control standards to build and test.type: 500WColour:WhiteMaterial:nylonSize:47.5 x 13mmPackage Contents:3 x Gears with bearingsOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.