GY6 STAGE 3 Koso Performance Transmission Kit
Koso 115mm Variator
- 115mm, Compare to stock: 103mm.
- Teflon coated ramp plate.
- Revised ramp angles.
Koso High Performance Clutch Unit
This clutch unit engages at higher RPM with more force than the standard clutch. This helps during steep hill climbing, towing, or when forcing the front end up over large obstacles. This unit provides a better launch from a stand still as well.