EK/JT 520MRD7 13/50 Chain Kit - Ultra-Light Sprocket by EK CHAIN. Designed for motocross competition, this chain kit combines a high-performance 520 chain with a 13-tooth sprocket and an ultra-light 50-tooth aluminum sprocket. Ideal for riders seeking a reliable, lightweight, and visually appealing transmission (gold/gold finish).
- Type: Complete chain kit (13-tooth sprocket / 50-tooth sprocket)
- Pitch: 520
- Number of links: 116
- Color: Gold / Gold
- Sprocket material: Aluminum (ultra-light)
- Relative lifespan: 450 (for 100 links)
- Weight: 1.47 kg for 100 links
The MRD7 design prioritizes friction reduction while providing good tensile strength and abrasion resistance—qualities sought after in off-road and racing. The aluminum sprocket lightens the overall assembly without compromising the geometry of the transmission, and the gold color adds an aesthetic touch to a CRF or a prepared enduro bike.
Examples of compatible motorcycles:
- GAS GAS EC 250 F (2015)
- GAS GAS EC 250 F REPLICA CAMI (2014)
- GAS GAS EC 250 F SIX DAYS (2012)
Professional installation is recommended to ensure proper tension and adjustment. Check exact compatibility with your model before ordering.
