7 gram 16 x 13 GY6 49 50 cc Performance Variator Rollers Weights Scooter Tao Tao | eBay
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Amazon.com: Glixal ATKS-041 High Performance Racing Variator Kit with 6.5 gram Roller Weights for Chinese Scooter Moped ATV 4-Stroke GY6 50cc 80cc 100cc 139QMB 139QMA Engine Front Clutch : Automotive
How to correctly install a variator roller weights. - YouTube
Changing your scooter roller weights: The technical breakdown - Scooter Central | Your One-Stop Scooter Shop!