16x13 4G ~ 9G Polygon Variator Roller Weight Slider For GY6 50 50CC 139QMB Scooter DIO Lead 100 110 SCV100 SH50 SKY

16x13 4G ~ 9G Polygon Variator Roller Weight Slider For GY6 50 50CC 139QMB Scooter DIO Lead 100 110 SCV100 SH50 SKY

AliExpress