primary transmission gear kit Malossi HTQ 16/37 17.7mm countershaft diameter for Piaggio 96-98

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 1996-1998 (17.7mm diameter linking shaft). Ratio on original primary drive: 11/39 = +35% (TPH, Storm, NRG, NTT etc.) 14/46 = +28% (Zip FR, Zip SP)