49cc Scooter Variator Tuning Kit

Want to dial in your scooter’s CVT performance? This variator tuning kit lets you test multiple roller weights without buying several separate sets — making it one of the easiest and cheapest ways to fine-tune acceleration, hill power, and top-end speed.

The Details

This tuning kit includes 12 sets of 3 rollers — for a total of 36 roller weights. It gives you the flexibility to test different weight combinations so you can find the setup that delivers the exact feel you want: quicker takeoff, stronger mid-range, or a better top end. Instead of buying multiple full roller sets, this kit lets you experiment freely.

The most important rule when tuning with mixed weights is to stagger the rollers inside the variator. Watch the video below for a clear explanation of how and why this works.

Important Things to Note

• Always match rollers by staggering weights evenly around the variator
• Lighter rollers = quicker acceleration but lower top speed
• Heavier rollers = slower takeoff but better top-end potential
• Great for diagnosing tuning issues before buying a permanent roller set

Fits the following scooters:

• Honda Ruckus 49cc
• Honda Metropolitan 49cc
• All QMB139 engines
• All 49cc Kymco models
• Taotao 49cc scooters
• SunL 49cc scooters
• Wolf 49cc scooters
• Puma 49cc scooters
• Roketa 49cc scooters
• Vespa ET2 (1998 & earlier)
• Kymco People 49cc
• Genuine Buddy 49cc
• Genuine Blackcat 49cc
• Genuine Roughhouse 49cc

What's Included

• 12 sets of 3 variator rollers (36 total rollers)
• Assorted weights for full tuning flexibility