At DMG Motorsports, we present the EK Chain 520 SPORT Non-Sealed 520-100L (SKU 69-3800) — a dependable, no-nonsense drive chain built for riders who want proven performance without paying for features they don't need. Engineered for lower horsepower dirt, ATV, and street applications, this chain draws on EK's decades of race-proven chain manufacturing experience to deliver a genuine upgrade over factory OEM chains at a price that makes sense for everyday riders and budget-conscious builds alike.

This 520 pitch, 100-link non-sealed chain is manufactured to meet or exceed EK's strict quality control standards, giving smaller-displacement motorcycles, ATVs, and dirt bikes access to the same race-proven engineering found throughout EK's product line. Because it's a non-O-ring design, it runs with reduced friction compared to sealed chains, making it a smart, economical choice for applications that don't demand an O-ring chain. Whether you're replacing a worn-out stock chain or upgrading a project bike, this chain is built to deliver solid, long-lasting performance mile after mile.

Features:

• 520 pitch, non-sealed (non-O-ring) chain with 100 links (520-100L)
• Designed for lower horsepower dirt, ATV, and street applications
• Pre-stretched and shot-peened for improved durability and consistent performance
• Solid rollers and heat-treated steel construction for long-lasting wear resistance
• Manufactured to meet or exceed EK's strict quality control standards
• Non-O-ring design reduces friction versus sealed chains
• Economical, race-proven upgrade over OEM replacement chains
• Great step-up choice for small-displacement motorcycles, ATVs, and dirt bikes