The DID 420 D Standard Series drive chain is a classic, no-frills roller chain designed for riders who want dependable power transfer on smaller-displacement bikes. As a non-sealed (non O-ring) chain, it’s a great match for applications that were originally equipped with a standard chain—keeping drivetrain friction low and maintenance simple.
If you’re replacing a worn chain on an 85cc bike or similar setup, this chain helps restore smooth, consistent drive and predictable throttle response. The clip-type master link also makes installation and removal quicker—ideal for routine servicing and trackside work.
Key features:
✅ Standard 420 roller chain for bikes designed for non O-ring chains
✅ 88 links for correct sizing on compatible models
✅ Clip master link for fast, practical fitting
Benefits of use:
🔹 Simple, proven design—a solid replacement choice without unnecessary complexity
🔹 Easy maintenance and serviceability thanks to a non-sealed construction and clip link
🔹 Great fit for small-displacement bikes (rated up to 85cc)
Technical specifications:
📌 Brand: DID
📌 Chain size/type: 420 / 420 D (Standard Series)
📌 Seal type: Non-seal (non O-ring)
📌 Number of links: 88
📌 Master link: Clip type
📌 Tensile strength: 17.7 kN (3970 lb)
📌 Max displacement (off-road/street): 85 cc
📌 Color/finish: Steel
📌 Weight: 0.70 kg / 100 links
Why choose this product?
⭐ DID quality—one of the most trusted names in chains worldwide
⭐ Correct replacement for non O-ring setups to maintain intended drivetrain performance
⭐ Practical for regular service intervals and straightforward installation
