EK/JT 520SRX2 Chain Kit 16/42 - Ultra-Light Sprocket
The EK CHAIN kit is designed for off-road and motocross enthusiasts looking for a good balance between strength and weight. The SRX series is appreciated for its balance between performance and cost, and is regularly updated with improvements in manufacturing.
- Compatibility: 16-tooth sprocket / 42-tooth sprocket (ultra-light sprocket)
- Pitch: 520
- Number of links: 110
- Sprocket material: Aluminum (ultra-light)
- Chain color: Steel / Steel
- Weight: 1.54 kg for 100 links
- Longevity index (100 links): 3300
- Brand: EK CHAIN
- Manufacturer reference: Not provided
Designed for motocross/enduro use, this kit allows for the replacement of the sprocket, chain, and sprocket in one operation to restore a healthy transmission. The ultra-light aluminum sprocket reduces unsprung mass — a noticeable advantage in handling — while the 520 SRX2 chain remains suitable for off-road conditions. Ideal for machines like the KTM 640 LC4 (2002, 2005, 2006) and other compatible 520 enduros.
Practical tips: check the swingarm adjustment, inspect the wear on the teeth before installation, and lubricate the chain regularly according to usage conditions to optimize its longevity and the safety of the transmission.
