primary transmission gear kit Malossi HTQ 14/39 17.7mm countershaft diameter for Piaggio 1998- M.679080

Malossi draw on 20 years of tuning transmissions. A longer ratio allows for higher top end speed. Longer ratios are only really suitable on tuned engines. For use on Piaggio engines from 1999 on (pressed sprocket and linking shaft). Primary shaft is generally in the variomatic cover on this transmission. +17% over standard 13x46 primary drive.