EK CHAIN 520H 520 Universal ChainRef : EKC00844A / 1129900004

The transmission chain EK 520H 520 (manufacturer part number 520H-STL 90 SPJ) is a robust chain designed for riders and off-road enthusiasts seeking a reliable solution to replace their transmission. Manufactured according to EK JAPAN standards, it offers a good balance between cost, mechanical durability, and ease of maintenance.

• Pitch: 520 — suitable for common drivetrains on roadsters and motocross bikes.
• Number of links: 90 — ready-to-install length or can be shortened according to your setup.
• Color: Steel / Steel — raw finish for broad compatibility with sprockets and gears.
• Relative lifespan (100 links): 150 — wear indicator provided by the manufacturer.
• Weight: 1.66 kg / 100 links — mass to consider in the calculation of the drivetrain's inertia.

Designed for Quad, Urban, Motocross, and Roadster environments, this chain is intended for both small displacement and lightweight everyday motorcycles. Regular maintenance, good lubrication, and tension adjustment are essential to limit link wear and preserve sprocket and gear life. Compatible with many recent models — for example, TRIUMPH SPEED 400 (2025), ZONTES 125Z2 (2025), and KTM 125 DUKE ABS (2025) — it provides a solid foundation for effective transmission both on and off the road.