Rear - Front sprockets Front sprocket KTM 400 EXC-F Factory Edition 2010-2011 Marca 1 MJF.173 €13.85 Front sprocket for KTM 400 EXC-F Factory Edition 2010-2011, 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