Malossi RC one piaggio derbi gp1 typhoon gear set

Malossi rc one spec/ratio primary and secondary gear set for your piaggio typhoon, Derbi GP1, or rc one/c one motor. 


14/39 primary kit

13/48 secondary. 


this is the combo to get your bike into the 90-100mph range with proper tuning. 


this is a kit with BOTH primary and secondary kits.