Specification:
Item Type: E Bike Motor Gear Kit
Material: Steel + nylon
Nylon Tooth Belt Size: Outer Diameter: Approx. 47.5mm / 1.87in, Inner Diameter: Approx. 8mm / 0.31in, Thickness: Approx. 13.5mm / 0.53in
Size: Outer Diameter: Approx. 88mm / 3.46in, Inner Diameter: Approx. 15mm / 0.59in(manual measurement allowable error)
Nylon Gear: 36T
Applicable Motor: 500W-750W

Package List:
1 x E Bike Motor Gear Kit

Note:
Pay attention to the size of the motor.