EK/PBR 520SRX2 Chain Kit 13/52 - Ultra-Light Sprocket: a kit designed for off-road riders who want reliable and visually appealing equipment. EK's SRX series offers a good performance/price ratio, and this 520SRX2 kit maintains that philosophy with a golden finish that highlights the drivetrain.
- Configuration: 13-tooth sprocket / 52-tooth sprocket (13/52)
- Pitch: 520 — 116 links included
- Color: gold/gold (chain and seals)
- Sprocket: ultra-light aluminum, designed to reduce the weight of the chain/sprocket assembly
- Weight: 1.54 kg for 100 links (indicative weight)
- Relative lifespan: 3300 (manufacturer reference for 100 links)
Designed for motocross use, this kit is aimed at riders who are upgrading or maintaining their drivetrain on machines like the KTM 400 EXC (2010-2011) and their Factory Edition variants. The aluminum sprocket reduces unsprung weight, and the 520 pitch chain remains a common choice for reliability and availability of parts. Ideal for off-road sessions where the entire setup needs to stay light, visible, and easy to replace.