APRILIA Rear sprocket for Aprilia 850 Mana 2008-2016 MJ Corse MJ.500 €53.05 High quality duraluminium (ergal) rear sprocket for Aprilia 850 Mana 2008-2016 with chain pitch 525 and with number of teeth from 36 to 46. Select the chain pitch and number of teeth you need by clicking below. Add to cart