EK 420 H/Duty Chain 120L (20)

Engineered for riders and fleets that demand uncompromising power transfer, the EK 420 H/Duty Chain 120L (20) delivers reliable performance under high-torque conditions mile after mile. This heavy-duty 420-sized drive chain is designed to stand up to demanding riding—from daily commuting to aggressive track and off-road sessions. Each chain in this 20-pack measures 120 links, giving you ample length for a variety of sprocket configurations while ensuring you’ve got spares ready for quick swaps.

Why this chain stands out

• Heavy-duty construction for demanding riding — built to handle high torque, rough terrain, and extended use without premature stretching.
• 120-link length per chain — generous link count provides versatile sizing for common 420 setups and easier installation in field or workshop settings.
• Consistent quality across the pack — the 20-chain bundle is designed for fleets, repair shops, or riders who like to keep reliable backups on hand.
• Trusted EK engineering — developed by a brand with a reputation for durable drive chains that perform under pressure.

Ideal use cases

Perfect for motorcycles and off-road machines that rely on a robust 420 drive chain. Whether you’re rebuilding after a season of hard riding, outfitting a small service fleet, or stocking a shop’s inventory, the EK 420 H/Duty Chain 120L (20) offers a practical, long-lasting solution. It’s well-suited to street bikes with spirited riding styles, adventure bikes that tackle varied terrain, and light sport machines where dependable chain performance matters most.

What problems it solves

• Reduces downtime caused by frequent chain replacements in high-torque applications
• Helps maintain smooth power delivery and predictable acceleration under load
• Provides a ready supply of chain length options to accommodate different sprocket setups
• Delivers consistent performance across multiple units in a fleet or workshop

Maintenance and installation tips

For optimal longevity, pair the EK 420 H/Duty chain with proper lubrication and regular tension checks. Keep the chain clean, remove built-up debris, and lubricate with a high-quality chain oil appropriate for your riding conditions. When installing, check sprocket teeth for wear and align the chain precisely with the rear sprocket, then set the tension to manufacturer recommendations to avoid premature wear or binding.

In the box

• 20 chains, each 120 links long
• Note: Compatibility depends on your specific motorcycle or off-road setup; verify chain size and sprocket configuration before installation