Koso High Speed Variator for engines 50cc GY6 4-stroke

High grade variator for scooters with an engine of type GY6.

This variator improves the response of the engine, especially when accelerating uphill.

Mounting it requires about 15 minutes.

This variator is self ventilated for better performance.

Moving pulley dimensions:
- diameter: 86mm,
- fits rollers of 13x16mm,
- fits bush of 20mm outer diameter