
The EK CHAIN 520M3 13/50 chain kit is designed for motocross riders seeking a reliable and easy-to-maintain transmission. Composed of a gold-colored chain and a standard steel sprocket, this kit aims to minimize friction while providing good resistance to tension and abrasion — essential qualities for muddy and rocky off-road terrains.
This kit is primarily aimed at motocross machines — it is particularly suitable for models such as the YAMAHA YZ 125 (1994). Installation and maintenance should be carried out according to the manufacturer's recommendations: correct tension, appropriate lubrication, and regular wear checks to ensure a safe and durable transmission on tracks and off-road outings.