150cc Scooter Variator Tuning Kit

Want to fine-tune your GY6 variator without buying multiple full roller sets? This tuning kit makes it easy to test roller combinations and dial in your CVT for your weight, riding style, and engine setup 🎯⚙️ 🔧 Includes 12 different weight options 🧪 Perfect for testing and dialing performance 💰 Saves money vs buying full roller sets one by one The Details ⚙️ This tuning kit is designed specifically for **GY6 QMJ157 engines** and includes 12 sets of rollers (3 per set) — a total of 36 rollers. It allows you to test different setups, improve acceleration, adjust RPM behavior, and find the perfect balance between low-end pull and top-end speed. Staggering roller weights is the key to getting the best performance — especially if you're running a variator upgrade, big-bore kit, clutch upgrade, or performance exhaust. The video below breaks down exactly how to set up staggered roller tuning.