EK/PBR 520MRD7 14/49 Chain Kit - ultra-light sprocket by EK CHAIN: a set designed for motocross, where every gram and every link matters. This 520MRD7 chain combines a competition-focused construction with an ultra-light aluminum sprocket to reduce unsprung mass without sacrificing the strength needed for muddy tracks and repeated jumps.
- Configuration: 14 teeth sprocket / 49 teeth sprocket (14/49)
- Chain type: 520, 116 links
- Color: gold / gold (chain and sprocket)
- Sprocket material: aluminum (ultra-light)
- Weight: 1.47 kg for 100 links (mass index)
- Relative lifespan: 450 (reference for 100 links)
- Brand: EK CHAIN — specifically oriented towards competition / off-road
Designed to minimize friction and provide high resistance to traction and abrasion, this chain kit is suitable for demanding motocross riders looking for reliability and lightweight performance. Standard installation and maintenance: check tension and lubrication after muddy rides to preserve longevity. Manufacturer reference: not provided.
Compatible motorcycles (examples):
- SUZUKI RM‑Z 450 (2005, 2006, 2007)
