CORSE FACTORY MJ rear sprocket for Corse Factory CRS M4 MJ Corse MJ.370 €32.12 High quality duraluminium (ergal) rear sprocket for Corse Factory CRS M4, with chain pitches 415 and 420 and with number of teeth from 32 to 49. Select the chain pitch and number of teeth you need by clicking below. Add to cart
