EK CHAIN 520MRD7 520 Universal ChainRef : EKC00904A / 1129901032

EK CHAIN 520MRD7 Transmission Chain (ref. 520MRD7-G/G 140 SPJ) — a chain designed for demanding uses, from motocross to urban riding. Its construction emphasizes longevity and reliability in real-world situations: reduced friction, tensile strength, and good abrasion resistance to tackle tracks, trails, and daily roads.

• Pitch: 520
• Number of links: 140
• Color: Gold / Gold (gold finishes)
• Relative lifespan (100 links): 450
• Weight: 1.47 kg / 100 links
• Brand: EK CHAIN

Compact and robust, this chain is suitable for both quad and motocross riders as well as urban users and roadsters. It will fit configurations requiring a 520 chain with 140 links — check the required number of links for your sprocket and crown before installation.

Common installation examples: YAMAHA YZ 450 F (2026), SUZUKI RM-Z 450 (2026), HUSQVARNA FE 501 (2025).

Usage tips: regularly check the tension, lubricate according to the manufacturer's recommendations, and replace the chain at the same time as the crown and sprocket if wear is significant. The gold finish makes it easier to visually spot wear and adds an aesthetic touch to your transmission.