EK/PBR 520MRD7 13/50 Chain Kit - ultra-light sprocket by EK CHAIN: a kit designed for motocross use, combining a 520MRD7 chain and an ultra-light aluminum sprocket. Gold/gold finish for a racing look and compatibility with off-road challenges (jumps, mud, stones).
- Type: 520 chain kit (sprocket 13 / sprocket 50)
- Chain: 520MRD7, 114 links
- Color: Gold / Gold
- Sprocket Material: Aluminum (ultra-light)
- Pitch: 520
- Weight: 1.47 kg (for 100 links)
- Relative lifespan: 450 (based on 100 links)
This kit is aimed at motocross riders looking for a lightweight transmission without compromising on durability. The aluminum sprocket reduces unsprung mass for a more responsive behavior of the rear wheel, while the 520MRD7 chain provides a setup suitable for demanding outings. Regular maintenance (tension, lubrication, and link inspection) is recommended to preserve the longevity of the kit.
Compatibility (examples): suitable for KAWASAKI KX 450 (2026), KX450J (2022), and KX450F (2018). Manufacturer reference: not provided.
