Excellent Grade Copper Material: Made of excellent grade copper material, stable performance, not easy to deformation, wear proof, high strength, long service life.
Effectively Improve Performance: Effectively improve the performance of electric bike, hardened steel can increase the strength of the gear, and improved gear mesh reduces the drive system.
Overdrive Available: Nice spare parts are available with improved gear meshing. The gear provides overdrive to the axle, helping to easily pull the electric bike up.
Provide Balanced Driving: Light weight does not increase the burden of electric bikes, can provide balanced driving, maximize the performance of electric bikes.
Reasonable Design: Easy to install and disassemble, to directly replace the original parts or damaged parts, in order to obtain higher strength.