## Moto-Master 7075 Alu 428 40T Rear Sprocket The Moto-Master 7075 Alu 428 40T Rear Sprocket is an essential upgrade for young motocross riders seeking peak performance. Expertly crafted by Moto-Master, this lightweight 7075-T6 aluminum rear sprocket is designed to significantly reduce rotating mass, providing a competitive edge for 50cc youth motocross bikes. It ensures superior power transfer and unmatched durability on the track. ### Engineered for Championship Performance This Moto-Master 7075 Alu rear sprocket is precision-machined from aerospace-grade 7075-T6 aluminum, known for its exceptional strength-to-weight ratio. The hard-anodized finish not only gives it a sleek black appearance but also provides superior resistance against wear and corrosion, crucial for the demanding conditions of motocross racing. * **7075-T6 Aluminum Construction:** Offers incredible strength while keeping the weight to a minimum. * **Hard-Anodized Finish:** Enhances durability and protects against abrasive track elements. * **Reduced Rotating Mass:** Contributes to faster acceleration and improved suspension response. ### Precision Design for Young Racers Specifically optimized for 50cc youth motocross bikes, this 40-tooth rear sprocket ensures perfect chain engagement with 428 chains, delivering consistent and reliable power. Its advanced design focuses on maximizing the bike's potential, giving young riders better control and an advantage off the starting gate and through the corners. * **Optimal 40-Tooth Count:** Provides balanced gearing for a wide range of track conditions on 50cc bikes. * **428 Chain Compatibility:** Guarantees seamless integration with standard chains for junior motocross. * **Advanced Tooth Profile:** Engineered for efficient power transfer and extended sprocket life. ### Technical Specifications * **Product Type:** Rear Sprocket 428 * **Series:** Moto-Master 7075 Alu Rear Sprocket Black * **Teeth Count:** 40 * **Material:** Hard-anodized 7075-T6 Aluminum ### Compatibility * KTM SX 50 (2002-2026) * KTM SX 50 Mini (2002-2026) * 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)