
The EK CHAIN 520SRX2 14/42 chain kit is designed for motocross riders looking for a reliable and easy-to-install transmission. Built around the SRX series, this kit emphasizes functional efficiency: chain and sprockets with 520 specifications, a 14-tooth front sprocket, and a 42-tooth rear sprocket made of standard steel, ensuring compatibility for trails and light enduros.
This kit is particularly suitable for machines like the Kawasaki KLX 250 (2015–2017 models) and other motocross bikes equipped with 520. Easy to maintain, the gold finish allows for visual wear detection and adds an aesthetic touch to the swingarm. Before installation, check the exact compatibility with your model and the condition of the drivetrain (alignment, tension, chain guide) to ensure a smooth setup.