Adapter designed mainly for gas motorized bicycle only; Material:A6061; Rotor Stainless Steel
Inner Diameter of Center hole of Adapter:37mm; Inner Diameter of Center hole of 28T sprocket:37mm Center Distance: 44mm and Outside Diameter: 180mm for the Disc Brake Rotor.
Out Diameter of 28T sprocket:120mm；Sprocket Teeth Thickness:4.2mm； Overall Thickness of Sprocket 28T: 6.2mm Thickness is 0.19mm for the Disc Brake Rotor
Adapter plate Thickness:4mm; Overall Thickness of Adapter:10.8mm； Net Weight:140g; Any questions,please contact us firstly! we can help you solve the problem until you are satisfied.
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