The EK CHAIN 520MRD7 13/49 chain kit - ultra-light sprocket is designed for motocross riders who want a lightweight and refined transmission. With a gold-coated chain paired with an ultra-light aluminum sprocket, this kit combines appearance and weight optimization without unverified technical promises. Designed for off-road demands, it facilitates throttle response and gear changes on muddy or sandy tracks.
- Type: Chain kit 520 (sprocket 13 / sprocket 49)
- Brand: EK CHAIN
- Number of links: 114
- Color: Gold / Gold
- Sprocket material: Aluminum (ultra-light)
- Relative lifespan: Index 450 (for 100 links)
- Weight: 1.47 kg for 100 links (approximately 1.67 kg for 114 links)
This kit is particularly suited for motocross machines such as the SUZUKI RM-Z 250 (models 2010–2012) and other similar enduro/motocross bikes equipped with a 520 pitch. The aluminum sprocket reduces rotational mass for a more responsive performance, while the treated chain offers a finish that withstands the rigors of the terrain. Check the number of links and fitment before installation or consult a workshop for precise tension adjustment.
