The EK/PBR 520MRD7 13/49 chain kit with ultra-light sprocket is designed for motocross riders who want a lightweight and responsive transmission without compromising strength. Engineered to minimize friction and withstand the demands of challenging terrains, this chain/sprocket combination facilitates engine revving while remaining suitable for the constraints of amateur and recreational competition.
- Type: 520 chain kit with 13-tooth sprocket / 49-tooth sprocket (13/49)
- Chain: 520, 114 links, Gold/Gold color
- Sprocket: Ultra-light aluminum, reduced weight to decrease unsprung masses
- Weight: 1.47 kg for 100 links (manufacturer reference)
- Relative lifespan: 450 (for 100 links, longevity indicator)
A relevant choice for motocross machines, this kit offers a good compromise between lightness and wear resistance. Ideal for gearing adjustments that favor acceleration, it requires regular maintenance (tension, lubrication, link inspection) to maintain its performance on muddy or rocky terrains.
Common compatibilities: notably SUZUKI RM-Z 250 (2013, 2014, 2015). Please check the length and pitch before installation.
Manufacturer reference: Not provided