APRILIA MJ rear sprocket for Aprilia Pegaso 125 89-99 MJ Corse MJ.288 €49.36 High quality duraluminium (ergal) rear sprocket for Aprilia Pegaso 125 89-99 with chain pitches and and with number of teeth from 38 to 44. Select the chain pitch and number of teeth you need by clicking below. Add to cart