GAS GAS MJ rear sprocket for Gas Gas Rookie 50 2002-2005 MJ Corse MJ.224 €38.24 High quality duraluminium (ergal) rear sprocket for Gas Gas Rookie 50 2002-2005 with chain pitch 420 and with number of teeth from 40 to 60. Select the chain pitch and number of teeth you need by clicking below. Add to cart
