
This part being universal, it may require adaptations
EK 520MRD7 Transmission Chain - Manufacturer Ref: 520MRD7-G/G 118 SPJ
Designed by EK CHAIN, this 520MRD7 chain features a gold finish and a construction tailored for demanding uses (quad, urban, motocross, roadster). With its 118 links and a pitch of 520, it is aimed at riders seeking a robust transmission and a polished look for their drivetrain. Its relative lifespan index (450 for 100 links) provides a comparative indication of longevity within its category.
The 520MRD7 emphasizes mechanical strength and a finish that minimizes visible wear. Ideal for high-demand transmissions, it is suitable for the torque increases of motocross bikes and the requirements of roadsters and quads. Before installation, check the compatibility of the sprocket/crown and the required length: an incorrect number of links or an unsuitable chain adjustment will affect handling and lifespan.
Common compatibilities (examples): YAMAHA YZ 450 F (2026), SUZUKI RM-Z 450 (2026), HUSQVARNA FE 501 (2025). For a clean installation, prioritize controlled riveting and regular lubrication according to the manufacturer's recommendations.