DERBI MJ rear sprocket for Derbi FENIX 50 until 1999 MJ Corse MJ.511 €103.42 High quality duraluminium (ergal) rear sprocket for Derbi FENIX 50 until 1999 with chain pitches 420 and with number of teeth from 46 to 60. Select the chain pitch and number of teeth you need by clicking below. Add to cart
