DID 420D Standard Series drive chain for bikes originally equipped with a non O-ring chain. A reliable, no-frills 420 roller chain designed for broad everyday use.
The DID 420D Standard Series chain is a classic non-sealed (non O-ring) roller drive chain built for simple, dependable final-drive performance. It’s an excellent choice when your bike was originally designed for a non O-ring chain and you want a straightforward replacement without added complexity.
With an industry-standard chain life index rating and a durable steel construction, this chain helps you keep maintenance predictable and costs sensible—ideal for smaller-displacement bikes where a lightweight standard chain is the correct fit.
