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If you are looking for mini bike 420 chain, mini bike 40 chain, and mini bike 41 chain, check out the high quality stocks at OMB Warehouse from leading brands. Our top selling mini bike 420, 40, 41 chainare built for strength, durability and reliability. Our chains are manufactured from very specific carbon & alloy steel to achieve the highest level of wear & fatigue resistance through precise heat treatment & shot peening. The chains are fully compliant with the ANSI B29.1 standards, which outlines specific dimensional & strength requirements for American roller chain sizes. One of our top selling items is the mini bike 420 Chain, 132 Link + Chain Breaker for 110cc 125cc mini bikes. It is made of Premium Quality, made of alloy steel, heavy duty and long durability.Specifications are Chain 420; Pitch: 1/2"; Roller Width: 1/4"; Roller Diameter: 5/16"; Sprocket Thickness: 0.227". Breaker is good for 420-530. The links can be removed to fit virtually any application, like 50cc 70cc 90cc 110cc 125cc ATVs and dirt bikes. The Package includes a 1pcs roller chain and a 1pcs chain breaker. Also, check out our 60 teeth rear sprocket for #40/41/420 chains with 9-3/4" overall diameter, and made from heavy-duty machined steel.