EK CHAIN JT 520H 14/49 - Ultra Light Rear Sprocket Chain kitYAMAHA 250 YZ 250 - 1987 - 1989Ref : EKC03655A / 3068454

The EK/JT 520H 14/49 chain kit - ultra-light sprocket is designed for motocross riders seeking a lightweight and reliable transmission set. Manufactured according to EK Japan standards, it combines a robust 520 chain with an ultra-light aluminum sprocket for a good balance between mechanical strength and reduced rotating mass.

Main features:

• Brand: EK CHAIN (Manufacturer reference: Not disclosed)
• Sprocket/crown configuration: 14/49 (ratio suitable for motocross)
• Pitch: 520
• Number of links: 114 (cutting/assembly may be required if necessary)
• Color: steel/steel
• Sprocket: ultra-light aluminum
• Relative lifespan: 150 (reference value for 100 links)
• Weight: 1.66 kg for 100 links

Compatibility type: ideal for motocross bikes such as the YAMAHA YZ 250 (years 1987–1989). This kit will be suitable for training sessions and off-road outings where a lightweight transmission is desired without compromising robustness.

Usage tips: regularly check the tension, inspect the wear of the links, and lubricate the chain after each muddy outing to maximize longevity. When properly installed, this kit provides a reliable foundation for your motocross transmission.