1,High friction coefficient 2,OEM manufacturer 3,Motorcycle brake manufacturer 4,ISO9001:2008 Certificate Model YJ90MaterialADC12/Y113ColorOptionalAxle hole φ12Chain wheel specification 420,428No. of gears 36,37,40,41,46Suitable for motorcycles JD90,Dayang, Honda tai FAST DELIVERY Motorcycle Parts China YJ90 motorcycle buffer for JD90, Honda