420 Primary Drive Sealed X-Ring Replacement Chain | Surron Ultra Bee eDirtyBike 5" from the back of

5" from the back of the seat on an MX3

Peg pins (e-clips included)

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

all made from titanium alloy

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

420 Primary Drive Sealed X-Ring Replacement Chain | Surron Ultra Bee eDirtyBike 5" from the back of420 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