420 size chain is used on ATVs, go karts, and dirt bikes, typically with of 49cc, 50cc, 70cc, 110cc, or 125cc engines. Included is five feet of open loop chain with a master link.
Cut the chain to your desired length for a perfect fit. Please note that you will need to cut or otherwise shorten the chain yourself if the chain is too long for your application.
Specifications
Pitch: 1/2"
Roller Diameter: 5/16"
Roller Width: 1/4"