EK/PBR 520MRD7 13/48 Chain Kit - Ultra-light Sprocket
Designed for motocross use, this EK CHAIN kit combines a high-performance 520 chain with an ultra-light aluminum sprocket. The 13/48 gearing provides a ratio suited for the demands of bumpy terrains and quick accelerations, while maintaining reduced inertia thanks to the lightweight sprocket.
- Color: Gold/Gold — visible finish and easy identification during checks.
- Number of links: 114 (adjustable according to installation).
- Pitch: 520, motocross standard.
- Weight: 1.47 kg for 100 links — controlled mass to limit unsprung weight.
- Sprocket material: Aluminum — weight savings without compromising usability compatibility.
- Relative lifespan: 450 (indicative value for 100 links).
The construction prioritizes resistance to tension and abrasion, suitable for the stresses of competition and muddy or abrasive off-road conditions. Easy to install and adjust, this kit is aimed at demanding riders looking for a reliable and lightweight drive system for their motocross outings.
Compatibility (examples):
- YAMAHA YZ 450 F (CJ23) 2019
- YAMAHA YZ 450 F (CJ22) 2018
- YAMAHA YZ 450 F (CJ21) 2017
Manufacturer reference: Not provided