Renthal 439-520 Grooved Front Sprocket

Renthal 439-520 Grooved Front Sprocket Silver 13t. Renthal 439-520 Grooved Front Sprocket: Engineered for ultimate durability and self-cleaning performance in demanding motocross and off-road conditions. Its innovative mud grooves actively clear debris, ensuring consistent power transfer and reduced wear. Crafted from high-strength, case-hardened nickel chromium steel, this sprocket offers superior resilience against extreme stress. Trusted by factory racing teams, it guarantees championship-level quality and a longer drivetrain lifespan. Perfect for HONDA CR 125 R, CRF 250 R, and CRF 250 X models. Renthal 439-520 Grooved Front Sprocket: Ultimate Durability and Self-Cleaning PerformanceUpgrade your motorcycle´s transmission with the Renthal 439-520 Grooved Front Sprocket, the definitive choice for riders who demand unparalleled performance and longevity from their drivetrain components. Engineered for the most demanding conditions in motocross, supercross, and off-road racing, this front sprocket is designed to provide a significant advantage in reliability and power delivery.At the core of its design is the innovative Self-Cleaning Front Chainwheel technology. This is not just a feature, it´s a solution to one of the biggest challenges in off-road riding: mud. The sprocket utilizes mud grooves which are CNC machined into each tooth on both sides to allow mud to flow away from the key contact points between the chain and the chainwheel. This intelligent design actively prevents the build-up of mud and grit, which can cause accelerated wear and rob your bike of precious horsepower. The result is consistent, efficient power transfer and a dramatically reduced risk of chain derailment, even in the sloppiest conditions.The exceptional durability of the Renthal 439-520 is a testament to its superior materials and precision manufacturing. They are CNC machined from a case hardened and core refined 655M13 nickel chromium steel. This advanced alloy is specifically formulated for the extreme stress and impact a front sprocket endures. The case-hardening process creates an ultra-hard, wear-resistant outer surface, while the core-refining process ensures the sprocket´s inner strength, preventing it from becoming brittle and prone to fracture. This dual-property construction provides the ultimate combination of strength and resilience.There´s a clear reason why Renthal off-road front chainwheels are chosen by more factory motocross and supercross teams than any other chainwheel on the market today. This is race-proven technology, trusted by champions who cannot afford a mechanical failure. By installing a Renthal sprocket, you are equipping your bike with the same level of quality and performance that professionals rely on to win championships. The precision engineering ensures a perfect fit and optimal chain engagement, which in turn helps reduce wear and increases the drivetrain lifespan. This means you spend less time and money on replacements and more time enjoying the ride.Compatible models:HONDA CR 125 R 2004-2007.HONDA CRF 250 R 2003-2017.HONDA CRF 250 X 2004-2018. tradeinn Motardinn