## Moto-Master Steel Rear Sprocket 428 42 Teeth The Moto-Master Steel Rear Sprocket 428 with 42 teeth is an essential upgrade for 50cc youth motocross bikes, ensuring robust and reliable power transfer. Engineered by Moto-Master, this premium steel sprocket is specifically designed for models like KTM, GasGas, and Husqvarna 50cc, offering unparalleled durability and long-lasting performance on the track. ### Unmatched Durability for Young Riders Crafted from hardened steel, the Moto-Master Steel Rear Sprocket is built to withstand the rigorous demands of youth motocross racing. Its superior construction provides maximum resistance to wear and tear, ensuring that young riders can push their limits without compromising on reliability. This commitment to quality makes it a trusted component for competitive off-road use. * **Hardened Steel Construction**: Offers exceptional strength and extended lifespan for the 428 chain. * **Maximum Wear Resistance**: Designed to endure aggressive riding conditions and maintain performance. * **Reliable Performance**: Ensures consistent power delivery under the intense pressure of 50cc racing. ### Precision Engineering for Optimal Performance Every Moto-Master Steel Rear Sprocket is a testament to precision engineering, guaranteeing perfect chain alignment and efficient power transmission. This meticulous design is crucial for optimizing the performance of 50cc youth bikes, allowing for smooth acceleration and confident handling on diverse terrains. Riders benefit from a component that integrates seamlessly with their bike's drivetrain. * **Exact 42 Teeth Count**: Optimized gearing for specific youth motocross applications on KTM, GasGas, Husqvarna. * **Perfect Chain Engagement**: Reduces friction and enhances drivetrain efficiency for the 428 pitch. * **Engineered for 50cc Bikes**: Tailored performance specifically for young riders and their off-road machines. ### Technical Specifications * **Product Type**: Rear Sprocket * **Series**: Moto-Master Steel Rear Sprocket * **Chain Pitch**: 428 * **Teeth Count**: 42 * **Material**: Hardened Steel * **Application**: 50cc Youth Motocross Bikes ### Compatibility * KTM SX 50 (2014-2026) * KTM SX 50 Mini (2014-2026) * KTM SX-E 5 E-Bike (2019-2026) * GASGAS MC 50 MC-E E-Bike (2021-2026) * HUSQVARNA TC 50 (2017-2026) * HUSQVARNA TC 50 Mini (2018-2026) * HUSQVARNA EE 5 E-Bike (2019-2026)