The EK/PBR 520MRD7 12/50 chain kit is designed to meet the demands of motocross: lightweight, robust, and resistant to track abrasion. The high-performance chain minimizes friction while providing suitable tensile strength for intense rides; its gold finish gives a racing look and makes wear detection easier. The ultra-light anodized aluminum sprocket reduces unsprung mass without sacrificing the strength needed for jumps and acceleration phases.
- Brand: EK CHAIN
- Manufacturer reference: Not disclosed
- Type: 520 chain kit (sprocket 12 / sprocket 50)
- Color: Gold / Gold
- Number of links: 116
- Pitch: 520
- Weight: 1.47 kg / 100 links
- Sprocket material: Hard anodized aluminum (ultra-light)
- Relative lifespan (index): 450 (for 100 links)
Ideal for motocross riders looking for a reliable transmission for competition or training. Regular maintenance is recommended: cleaning after muddy rides, appropriate lubrication, and checking the tension and wear of the links to preserve longevity. Common compatibilities: Husqvarna TC 250 (2006–2008).