15-38 GY6 150cc Final Transmission Performance Gear Set
GY6 Final Transmission Upgrade Gear Sets in a wide variety of sizes and combinations for 150cc and 125cc GY6 4-stroke engines commonly found on Full-Size Street Scooters and Off-Road Vehicles. 15 Front Tooth Gear with 38 Rear Tooth Gear.
This typically gives 4-8mph higher top-end than most OEM Gear Sets. This often gives a little less off the line acceleration and switching front variator weights to lighter slider weights can offset this.
This product does require 1 gear to be pressed in.