
The EK/PBR 520MRD7 13/48 chain kit with ultra-light sprocket is designed for demanding motocross riders who want a lightweight and reliable drive system. The 520MRD7 chain, presented in a gold finish on both sides, combines a standard 520 pitch with a 13/48 setup to maintain torque and responsive handling on challenging or bumpy terrain.
Designed to minimize friction and withstand the demands of the terrain, this kit is ideal for YZ 450 F riders (2017–2019 models) and other motocross machines equipped with a 520 pitch. Its sprocket/crown combination and ultra-light aluminum sprocket offer a good balance between durability and agility for your sessions or competitions.