YAMAHA MJ rear sprocket for Yamaha FZR 400 MJ Corse MJ.956 €37.68 High quality duraluminium (ergal) rear sprocket for Yamaha FZR 400 with chain pitch 428, 520 and 525 and with number of teeth from 38 to 60. Select the chain pitch and number of teeth you need by clicking below. Add to cart