## Moto-Master 520 49-Tooth Aluminum Rear Sprocket Elevate your off-road performance with the **Moto-Master 520 49-Tooth Aluminum Rear Sprocket**, a premium racing component designed for Kawasaki KX, KLX, KXF and Suzuki RM-Z motorcycles. Engineered for superior strength and minimal weight, this **Moto-Master rear sprocket** ensures reliable power transfer and enhanced acceleration, giving riders a distinct advantage on the track or trail. ### Unmatched Durability and Precision Engineering Crafted from aircraft-grade 7075-T6 aluminum, the **Moto-Master 49-tooth rear sprocket** represents the pinnacle of material strength and reliability. Each sprocket is CNC machined to exacting tolerances, guaranteeing a perfect fit and flawless chain alignment, which is critical for demanding riding conditions and extends drivetrain lifespan. * High-strength 7075-T6 aluminum construction for extreme resilience. * Precision CNC machining ensures optimal fit and alignment. * Hard-anodized black finish for superior wear resistance and factory aesthetics. ### Optimized Performance for Demanding Riders Designed with the serious rider in mind, this **520 aluminum rear sprocket** features innovative self-cleaning grooves. These grooves actively prevent mud and debris build-up between the teeth, maintaining consistent chain engagement and preventing premature wear, even in the most challenging environments. * Self-cleaning grooves effectively shed mud and debris for consistent performance. * Lightweight aluminum design reduces unsprung mass for improved handling and acceleration. * Optimized tooth profile for smooth chain engagement and reduced friction. ### Technical Specifications * **Product Type:** Rear Sprocket * **Material:** Aircraft-grade 7075-T6 Aluminum * **Teeth:** 49 * **Chain Pitch:** 520 * **Inner Diameter:** 134.0 mm * **Bolt Holes:** 6 * **Bolt Pitch:** 150.0 mm ### Compatibility * Kawasaki KDX 200, KDX 220, KDX 250 (1983-2006) * Kawasaki KLX 250, KLX 300R, KLX 450R, KLX 650R (1979-2019) * Kawasaki KX 125, KX 250, KX 450, KX 500 (1980-2026) * Kawasaki KX 250 F, KX 450 F (2004-2018) * Suzuki RM-Z 250 (2004-2006) For a complete list of compatible vehicles, see the 'Fitment' section.