Super strong and lightweight design for high performance / racing mini off road and motocross machines.
Utilizes TST (TripleStar Treated) ultra hard pins and 100% heat treated components for high strength and durability.
Uses clip type connecting link.
420 chain achieves tensile strength of just under 5000 lbs while the 428 has approximately 5800 lbs.
Seamless rollers and bushings help provide the added life and durability.
All chains should be installed by a certified mechanic, using the proper installation tools. Chain adjustment should be per the motorcycle manufacturer s owner s manual.
Always check sprocket alignment when installing new drive components & during routine maintenance & adjustment; misaligned sprockets are detrimental in reducing the life of the entire drive system.
It is recommended to replace your chain with the same size and type of chain that originally came on the motorcycle.
Avoid using volatile solvents such as gasoline, thinners and/or benzine for cleaning. It is best to consult with your local dealer before using cleaners or lubes.
For best results and life, replace chain and sprockets together with Sunstar brand components.