EK 520 H/Duty Motocross Blue Chain 120L (10)

Introducing the EK 520 H/Duty Motocross Blue Chain 120L (10) — a purpose-built drivetrain upgrade crafted for aggressive off-road riding. The bold blue finish isn’t just for show; it makes wear and slack checks easier on muddy track days, helping you stay on top of maintenance so you can push your limits with confidence.

Why this chain stands out

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  520 pitch, heavy-duty design — built to handle the high-torque demands of motocross, enduro, and other off-road riding styles, delivering reliable power transfer under aggressive riding conditions.
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  120-link length provides flexible setup options for a range of MX configurations, reducing the need for frequent re-lengthing and making replacements straightforward.
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  Distinct blue color offers quick visual inspection of the chain during pit-side checks and post-race maintenance.
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  10-pack convenience — a practical, cost-efficient solution for riders who like to keep spare chains on hand or service multiple bikes in one go.
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  Compatibility by design aligns with common 520 drivetrain setups found on modern motocross bikes, making it a versatile choice for riders upgrading or replacing worn chains.

Who is this for?

Ideal for competitive motocross racers, serious hobby riders, and weekend warriors who demand durability and predictable performance from their chain. If you regularly ride on rough tracks, jump with authority, and value straightforward maintenance, this EK 520 H/Duty Motocross Blue Chain 120L (10) kit is designed to meet those needs.

Use cases and practical benefits

• — swap in a fresh 520 chain to maintain peak power transfer and reduce the risk of mid-race drivetrain failures.
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  Multi-bike preparedness — a 10-pack lets you outfit more than one bike or keep a ready-to-install spare on hand for quick swaps between sessions.
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  Track-day reliability — consistent chain performance helps you ride with tighter throttle control and smoother power delivery across varied terrain.

Maintenance and installation tips

To get the most from your EK 520 H/Duty Motocross Blue Chain 120L (10):

• Align chain length with your sprocket setup and use the proper master link for clean, secure installation.
• After installation, check chain tension according to your bike’s service manual and adjust as needed for your riding conditions.
• Regularly inspect the blue chain for signs of wear, stiff links, or excessive slack, and lubricate to minimize friction and extend life between services.
• Pair with compatible 520 sprockets and a high-quality lubricant formulated for off-road use to maximize durability and performance.

What’s included

Each kit features a ready-to-install EK 520 H/Duty Motocross Blue Chain with 120 links, packaged in a way that supports maintenance planning and quick replacements. The (10) in the product title signifies a ten-chain kit, giving you ample supply for spare setups or multi-bike use.