The EK/PBR 520M3 14/50 chain kit with ultra-light sprocket is designed for motocross riders seeking lightweight, visually appealing equipment tailored for off-road use. The gold/gold colored chain provides a racing look, while the ultra-light aluminum sprocket reduces unsprung mass for a more responsive rear wheel behavior. Designed to minimize friction, this kit remains suitable for the demands of competition and intensive motocross outings.
- Reference: EK CHAIN / 520M3
- Ratio: 14/50 (14-tooth sprocket / 50-tooth sprocket)
- Number of links: 116
- Pitch: 520
- Weight: 1.36 kg for 100 links (manufacturer's value)
- Sprocket material: aluminum (ultra-light)
- Relative durability index: 450 (reference 100 links)
This kit is particularly suitable for cross machines like the KTM 150 SX (2009–2011) listed in compatibility. Before installation, check the axle spacing and chain length required for your model. Proper installation, adjustment, and regular lubrication are essential to get the best performance from this kit and to preserve the chain and transmission on muddy or sandy terrains.