KAWASAKI MJ rear sprocket for Kawasaki KZ250 80-81 MJ Corse MJ.770 €46.52 High quality duraluminium (ergal) rear sprocket for Kawasaki KZ250 80-81 with chain pitch 520 and with number of teeth from 35 to 48. Select the chain pitch and number of teeth you need by clicking below. Add to cart