KTM Rear sprocket for KTM 420 MX 1981-1983 MJ Corse MJ.657 €56.44 High quality duraluminium (ergal) rear sprocket for 420 MX 1981-1983 with chain pitches 520 and number of teeth from 44 to 54. Select the chain pitch and number of teeth you need by clicking below. Add to cart
Rear - Front sprockets Front sprocket KTM 420 MX 1981-1983 Marca 1 MJF.173 €13.85 Front sprocket for KTM 420 MX 1981-1983, available in pitch 520 and with number of teeth from 11 to 16. Choose the pitch and number of teeth you need below. Add to cart
