Supersprox 13 Tooth Front Sprocket with Mud Groove for Kawasaki KX 250 99-08 & Yamaha WR 400F 98-99 & WR 426F 00-02 & WR 450F 03- & YZ 250 99- & YZ 450F 03-

The Supersprox 13-tooth front sprocket with mud groove is the definitive upgrade for off-road and MX riders seeking reliability and consistent drivetrain performance. Specially designed for the Kawasaki KX-250 (1999–2008), Yamaha WR-400F (1998–1999), WR-426F (2000–2002), WR-450F (2003–), YZ-250 (1999–) and YZ-450F (2003–), this sprocket delivers a durable, solid connection between the engine and chain in demanding conditions.

• Number of Teeth: 13-tooth front sprocket with mud groove
• Mud Groove Design: Helps reduce mud buildup and maintains grip on wet, muddy tracks
• Material: Durable hardened steel for long-lasting performance and reliable operation
• Brand: Supersprox—quality and trust from the world of motocross and enduro
• Compatibility: Specifically designed for the listed Kawasaki and Yamaha/YZ models (front position)
• MPN: JU-CST-565:13
• Transmission / Clutch: Front sprocket upgrade that enhances transmission performance under heavy loads
• Installation: Easy to install as a direct replacement front sprocket for drivetrain upgrades

With this Supersprox 13-tooth front sprocket, you’ll immediately experience improved power delivery and reliability in tough riding conditions. The mud groove enables more efficient mud clearance, reducing the drivetrain’s risk of losing grip on muddy tracks. The hardened steel features a robust build that stands up to the rigors of intensive training and races, while the lightweight design contributes to sharper throttle response and smoother chain performance. A targeted choice for riders looking to protect their transmission and maintain consistent performance across multiple seasons.