Product Description

Disc Brake Rotor Adapter and 28T sprocket;

Designed mainly For gas motorized bicycle only;

Material:A6061

Inner Diameter of Center hole of Adapter:37mm;

Inner Diameter of Center hole of 28T sprocket:37mm

Out Diameter of 28T sprocket:120mm

Sprocket Teeth Thickness:4.2mm

Overall Thickness of Sprocket 28T: 6.2mm

Adapter plate Thickness:4mm;

Overall Thickness of Adapter:10.8mm

Net Weight:140g

Please kindly note the sprocket not including the Allen bolt to mount on the wheel.
Mounting bolts need:
M5*40mm (40mm including cap length)
M5*35mm (35mm is the bolt thread length)