EK/PBR 520MRD7 Chain Kit 14/50 - ultra-light sprocket
Chain kit designed for motocross riders who demand lightness and reliability. The 520MRD7 chain by EK CHAIN features a gold finish on the chain side and a gold finish on the seals, and is accompanied by an ultra-light aluminum sprocket to reduce unsprung mass without sacrificing abrasion resistance. Designed to withstand the demands of off-road riding, this kit is suitable for both training sessions and competition days.
- Pitch: 520
- Configuration: 14 tooth front sprocket / 50 tooth rear sprocket
- Number of links: 116
- Color: Gold / Gold
- Sprocket material: Aluminum (ultra-light)
- Weight: 1.47 kg / 100 links
- Relative lifespan: 450 (for 100 links)
Recommended for cross machines where transmission responsiveness and reduced rotating weight make a difference: precise output sprocket, reinforced links to withstand traction and track dust. Compatible with many cross models — including KTM 350 SX-F (2018, 2019) and the FACTORY EDITION ANTONIO CAIROLI (2012) — this kit is a practical solution to refresh your transmission.
