NTNMOTOR Rear Hub Disc Brake Rotor Adapter 44mm- 48cc/66/80cc Gas Motorized Bike

CDHPOWER Disc Brake Rotor Adapter 44mm-48cc/50cc/66cc/80cc Gas Motorized Bicycle

Disc Brake Rotor Adapter w/ 28T Sprocket-Gas Motorized Bike 66cc/80cc/PK80/YD100

Disc Brake Rotor Adapter and 28T sprocket - Motorized Bicycle 48cc/66cc/80cc

Disc Brake Rotor Adapter and 28T sprocket - Gas Motorized Bicycle 48cc/66cc/80cc

CDHPOWER Disc Brake Rotor Adapter & 28T Sprocket-Gas Motorized Bicycle 48cc/80cc

Disc Brake Rotor Adapter and 36T sprocket - Gas Motorized Bicycle 48cc/66cc/80cc

CDHPOWER Disc Brake Rotor Adapter and 28T Sprocket for Gas Motorized Bicycle