The RK Standard Series M420 chain is a dependable choice when you need a strong, straightforward drive chain for smaller-displacement bikes. Built from heat-treated medium carbon alloy steel and finished with shot-peening, it’s designed to handle everyday riding loads while maintaining consistent performance and longevity.
If your current chain is stretched, noisy, or skipping under load, replacing it with a correctly sized 420 chain restores smooth power delivery and helps protect your sprockets. The included clip connecting link makes installation and servicing easier—ideal for regular maintenance or quick replacements.
Key features:
✅ Heat-treated medium carbon alloy steel construction
✅ All components heat-treated and shot-peened for maximum strength
✅ Four-point pin riveting with solid rollers
✅ Clip-type connecting link included
Benefits of use:
🔹 Strong, reliable chain build for consistent power transfer
🔹 Easier installation and maintenance thanks to the included clip master link
🔹 Great value replacement option for smaller bikes and standard applications
Technical specifications (if needed):
📌 Chain size: 420
📌 Chain type/model: M420 / Standard Series
📌 Number of links: 110
📌 Seal type: Non-seal
📌 Master link type: Clip
📌 Tensile strength: 17.8 kN (4000 lb)
📌 Material/finish: Carbon alloy steel, natural
Why choose this product?
⭐ Proven RK quality with heat-treated and shot-peened components
⭐ Practical, service-friendly setup with clip link included
⭐ Solid performance for bikes up to 90cc (off-road) / 125cc (street)
