APRILIA Rear sprocket for Aprilia RSV4 1100 2019-2021 MJ Corse MJ.293 €56.28 High quality duraluminium (ergal) rear sprocket for Aprilia RSV4 1100 2019-2021 with chain pitch 525 and with number of teeth from 38 to 42. Select the chain pitch and number of teeth you need by clicking below. Add to cart