420 Primary Drive Sealed X-Ring Replacement Chain | Surron Ultra Bee eDirtyBike Pivot design with return spring

Pivot design with return spring allows the lever to fold outward to prevent bending or breaking

OEM-quality zinc-coated steel for durability and corrosion resistance

Chain/mud guard bolts

Motor mount bolts

Replaces your existing key switch

420 Primary Drive Sealed X-Ring Replacement Chain | Surron Ultra Bee eDirtyBike Pivot design with return spring420 Primary Drive Sealed X Ring Replacement Chain Sur Ron Ultra Bee Replacement 420 sealed X ring chain designed specifically for use with DirtyBike primary belt to chain conversion kits for Sur Ron Ultra Bee. Built to handle the demands of electric drivetrains, the X ring design reduces friction while retaining lubrication for consistent, long service life. This chain is a direct fit for DirtyBike 420 primary conversion kits for the Ultra Bee. Key