The RK 420 Standard Series drive chain is a strong, low-maintenance replacement for bikes that originally used a non O-ring chain. Built from heat-treated, shot-peened carbon alloy steel for reliable power transfer and durability.
The RK 420 Standard Drive Chain is designed for riders who want dependable, consistent final-drive performance on smaller displacement motorcycles. It’s a great choice for bikes that did not come with an O-ring or heavy-duty chain from the factory, delivering smooth power transfer with a durable, lightweight non-sealed design.
Made from high-grade medium carbon alloy steel, this chain is heat-treated and shot-peened to maximize strength and fatigue resistance. RK pre-stresses and pre-stretches the chain to help ensure even load distribution, stable fitment and reduced adjustment needs over time—ideal for everyday riding, pit bikes and light off-road use.
