Amazon.com: Variator Roller Sliders Weights Set for QMB139 50cc 4 Stroke Engines (16x13mm) - 6 Grams : Automotive
Amazon.com: Hoca 169-149 QMB139 16 by 13 4 Gram Roller Weights for 50cc and Larger Scooters : Automotive
Amazon.com: TC-Motor Red 8mm Chain Roller Black Slider For Pit Dirt Trail Motor Bike Motocross XR CRF 50cc 90cc 110cc 125cc 140cc 150cc 160cc SSR Thumpstar Stomp : Automotive
Amazon.com: Hight Performance Racing Variator Roller Weights 9 Grams Sets for 139QMB GY6 Engine 50cc - 100cc Chinese Scooter ATV Moped Go-Kart Parts : Automotive
Amazon.com: TC-Motor Red 10mm Chain Roller Pulley Tensioner + Black Plastic Chain Slider + Aluminum Chain Guide Rear Swingarm Guard For Chinese Pit Dirt Trail Bike Motorcycle 50cc-160cc SSR Thumpstar : Automotive