Koso High Performance Variator Set (FB224003) for 125cc and 150cc GY6 4-stroke engines. This variator dissipates heat better, has in increased CVT range and has an optimized ramp design for improved acceleration!

• Made in Taiwan
• Dissipates Heat
• Increases CVT Range
• Optimized Ramp Design for Improved Acceleration
• Includes 18×14 (9g) Roller Weights