
EK/PBR 520MRD7 13/49 chain kit specially designed for motocross: 520 gold chain combined with a 13-tooth sprocket and a standard 49-tooth rear sprocket. Designed for off-road environments, this kit brings together robust components and meticulous finishes for easy installation and direct integration onto compatible drivetrains.
The chain's construction emphasizes tensile strength and abrasion resistance, key elements for aggressive dirt track sessions. Ideal for motocross riders seeking a drive and competition piece compatible with many YZ 250F models (2005–2008 listed), it features a gold finish that aids in visual inspection and provides corrosion protection. Installation and tension should be checked according to the manufacturer's procedure to ensure longevity and safety.