EK/PBR 520M3 13/50 Chain Kit - ultra-light sprocket by EK CHAIN: a kit designed for motocross riders who want a reliable, lightweight transmission ready to withstand racing conditions. The 520M3 chain, in gold/gold color, combines abrasion resistance and reduced friction for smooth operation in muddy or dusty terrain.
- Type: 520M3 chain kit with 13-tooth sprocket / 50-tooth ultra-light sprocket
- Number of links: 114
- Pitch: 520
- Color: Gold / Gold
- Sprocket material: Aluminum (ultra-light)
- Relative lifespan: Index 450 (for 100 links)
- Weight: 1.36 kg / 100 links
The ultra-light aluminum sprocket reduces unsprung mass for a more responsive handling, while the treated chain offers durability against traction and abrasion encountered in competition. Ideal for motocross machines, this kit is compatible with models such as the SUZUKI RM-Z 450 (2012–2014) — be sure to check the exact compatibility with your motorcycle and adhere to the recommended tension settings.
Regular installation, cleaning, and lubrication will extend the lifespan of the kit: proper maintenance remains key to ensuring reliability on special stages and during triple exits.