Rear - Front sprockets MJ rear sprocket for Ducati 907 I.E. 1991-1992 MJ Corse MJ.328 €60.69 High quality duraluminium (ergal) rear sprocket for Ducati 907 I.E. 1991-1992 with chain pitch 520 and with number of teeth from 36 to 48. Select the chain pitch and number of teeth you need by clicking below. Add to cart