
The EK/PBR chain kit 520SRX2 13/51 is designed for motocross riders looking for a reliable, lightweight, and easy-to-maintain drivetrain. The SRX series combines a good performance/value ratio, with regular improvements integrated to stay up-to-date on challenging tracks.
The hard anodized crown minimizes wear from sand and mud, while reducing the weight of the final drive — an advantage for maneuverability and direction changes on rough terrain. This kit is suitable for lightweight motocross bikes such as the Sherco 125 SE-R FACTORY (2022) and Sherco 125 SC (2019–2020). Regular maintenance and lubrication are recommended to maximize the longevity of the drivetrain.