brake system 1,High friction coefficient 2,OEM manufacturer 3,Motorcycle brake manufacturer 4,ISO9001:2008 Certificate Model YJ80MaterialADC12/Y113ColorOptionalAxle hole (mm) 10×31Rocker free dimension (mm) 90Brake shoe working dia (mm) 110Suitable for motorcycles CY80 Brake System YJ80 front brake pass ISO9001:2008 Certificate