DC brush motor, easy to control, can provide stable speed, sensitive braking and steering control.
The motor shell is made of durable metal material, strong and reliable, protect the internal circuit, good for heat dissipation and avoid thermal overload.
9 - tooth sprocket for 410 chains, 1/2 inch (12.7 mm) pitch.
Professional manufacturing, directly replace your old or broken one.
Suitable for DIY bike lover, the drive compatible with the standard bike chain (1/2 inch separation distance ).