Please according to your own measurements to choose your suitable size. The tags inside the items will show in our Asian (Type) size.
Uses:N20 gear motor small tires
Rubber tire is connected to N20 motor
No need for coupling, just plug in and use
Rubber tire with N20 motor
Can be assembled into a smart car
yahboom N20 Reducer Motor Small Tires D Axis 3mm RC Car Tires