EK/PBR 520MRD7 Chain Kit 13/51 - ultra-light sprocket: a drive system designed for motocross, where every gram and every link matters. This transmission combines a high-performance treated chain with an ultra-light aluminum sprocket to reduce inertia while maintaining good traction and abrasion resistance, suitable for the demanding conditions of competition.
- Pitch: 520
- Configuration: 13-tooth sprocket / 51-tooth sprocket (13/51)
- Number of links: 116
- Color: Gold / Gold
- Sprocket material: Aluminum (ultra-light)
- Weight: 1.47 kg per 100 links
- Relative lifespan: 450 (for 100 links)
Designed to minimize friction and wear in off-road conditions, this transmission line is aimed at riders seeking a balance between lightness and robustness: reinforced links, controlled slip, and a lightweight sprocket for increased responsiveness of the chassis. Ideal for 125 cc machines intended for motocross.
Compatible motorcycles (examples): KTM 125 XC (2026), GAS GAS MC 125 (2025), HUSQVARNA TC 125 (2024).
Manufacturer reference: Not disclosed.
