Beefy 420 Roller Chain For Dirt Bikes And ATVs 90 Links With 5 Connecting Links Carbon Steel Construction 0.5 Inch Pitch 7.77 Mm Roller 6.35 Mm Inner Width Fits 110Cc 125Cc Quad Go Kart Scooter

90-Link 420 Roller Chain for Dirt Bikes & ATVs, Steel
✔️ 0.5 in pitch, 7.77 mm roller, 6.35 mm inner width, 90 links

This rugged 420 roller chain is built for power transmission on dirt bikes, ATVs, Go Kart, Mini Bike, Scooter, Pit Bike, Quad, and more. It comes ready-to-use with a master link and is factory pre-stretched to minimize initial slack.

✅ 420 chain size with 5 connecting links for easy fitment
✅ Carbon steel construction delivers heavy-duty durability
✅ Pitch 12.70 mm (0.5 in); roller diameter 7.77 mm (0.31 in)
✅ Inner width between plates 6.35 mm (0.25 in); pin diameter 3.96 mm (0.156 in)
✅ Ready-to-use kit includes master link and is pre-stretched to minimize slack
✅ Fits 50cc-125cc ATVs and dirt bikes, Go Kart, Mini Bike, Scooter, Pit Bike, Quad
✅ Precision-ground rollers and solid bushings reduce friction and noise

💡 What is a 420 roller chain best used for in dirt bikes and ATVs?

In simple terms, a mid-size chain designed for reliable power transmission in light to mid-displacement machines. Handy for common off-road use.

- high-load transfer for engine-to-wheel efficiency
- handy master-link installation for quick replacements
- compatibility with standard sprockets and pitches
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