The Gates Powerlink 669-18.1-30 is a symmetrical CVT drive belt for 49cc–50cc four-stroke GY6 scooters. It measures 669 mm long, 18.1 mm wide and 30 degrees, the size most 139QMB engines take. Gates builds it for continuous variable-speed duty, and riders commonly report it outlasting the stock belt that ships on Chinese-made scooters. It suits anyone replacing a worn or glazed belt on a stock 50cc scooter, not big-bore builds that need a different size.
In stockReturn policy
Owners of 50cc GY6 scooters generally rate the Gates Powerlink belt as a durable replacement that holds up longer than the factory belt. Complaints center on fitment confusion and the need to confirm the size before ordering.
The Gates Powerlink 669-18.1-30 is a symmetrical CVT belt for 50cc automatic street scooters. It is made for continuously variable speed transmissions and holds up across a wide range of speeds and loads.
It is typically used on 49cc to 50cc 4-stroke GY6 scooter engines. It lasts longer than the OEM belts supplied on Chinese-made GY6 139QMB 4-stroke gas scooters.
Brands it is used on include Baja Motorsports, Geely, Honda, Meitian, Roketa and Tank. The compatible models include the Honda Elite E, Yamaha Razz 50 and Riva 50, and many Hyosung, Schwinn, TaoTao, Tank and TNG scooters.