The EK/PBR 520MRD7 13/48 chain kit - standard sprocket is designed for motocross riders looking for a robust and reliable transmission to tackle demanding terrains. The 520 MRD7 chain, finished in Gold/Gold, features a competition-oriented design to minimize friction while providing good resistance to traction and abrasion.
- Brand: EK CHAIN
- Kit composition: 520MRD7 chain + 13-tooth sprocket / standard 48-tooth sprocket
- Number of links: 114
- Pitch: 520
- Weight: 1.47 kg for 100 links
- Relative lifespan: index 450 (based on 100 links)
- Sprocket material: steel
- Manufacturer reference: Not provided
Designed to be mounted on motocross machines (e.g., KTM 250 SX 2014–2016), this kit offers a gearing suitable for the terrain while facilitating regular maintenance: checking tension, lubrication, and alignment are essential to maximize longevity. Ideal for replacing a worn transmission or preparing a race bike, this kit focuses on the durability of the components and a finish recognized by demanding riders.