Heavy Hitter 520 Ultra Bee Super Sprocket

The Heavy Hitter 520 Ultra Bee Super Sprocket is a one-piece 7075-T6 billet aluminum rear sprocket built for the Sur Ron Ultra Bee. Designed for riders running higher-power builds, aggressive enduro terrain, or larger 18/21-inch wheel conversions. Engineered to be one of the lightest and strongest Ultra Bee sprockets available, with a precision-machined tooth profile for longer wear and smoother chain engagement.

Fitment:

• Sur Ron Ultra Bee

The Heavy Hitter 520 Super Sprocket was developed for riders who push their Ultra Bee beyond what a typical aluminum sprocket was designed to handle. Many aftermarket sprockets sacrifice strength for weight or use generic machining that leaves rough tooth profiles and weak structural designs. Under high horsepower or repeated impacts in rocky terrain, these sprockets can bend, wear prematurely, or cause inconsistent chain engagement.

Precision CNC machined from a single piece of 7075-T6 billet aluminum, the Heavy Hitter Super Sprocket is engineered to maximize strength while keeping rotating mass as low as possible. A proprietary tooth profile promotes smoother chain engagement, reduces wear on both the chain and sprocket, and extends service life compared to conventional designs.

Whether you're building a high-power Ultra Bee, converting to an 18/21 wheel setup, or simply riding technical terrain, this sprocket is designed to withstand the abuse while delivering consistent drivetrain performance. As an added benefit, selecting the proper gearing can also help reduce load on the stock motor and controller, improving long-term reliability.