Primary Belt to Chain Conversion Kit | 420 | Sealed X-Ring | Surron Ultra Bee FactoryZ acceleration forces

acceleration forces

a high-power street setup

Stock grips wear out fast

and fine trail debris — the kind of contamination that destroys cheap bearings fast

Primary Belt to Chain Conversion Kit | 420 | Sealed X-Ring | Surron Ultra Bee FactoryZ acceleration forcesDirtyBike's 420 Sealed X Ring Standard Primary Chain Drive System For Sur Ron Ultra Bee. Torture tested in the 2024 RedBull TKO Extreme Enduro where it performed flawlessly. More Efficient Than Belt Better Acceleration Longer Run Time Easy Maintenance Similar To Stock Gear Ratio Chain can be replaced without removing the swing arm This system is essential for serious off roaders and retains the original gear ratio. 420 sealed X ring chain with master