
The PBR Ultra-Light 798 - 428 aluminum sprocket is designed for motocross riders seeking a lightweight and reliable component. Drawing from competitive experience, this sprocket combines precision machining and quality materials to withstand off-road stresses without adding weight to the overall transmission.
CNC machining operations ensure precise geometry and good concentricity, a key element for smooth transmission. The choice of high-quality aluminum, combined with a strict manufacturing process, provides excellent resistance to corrosion and abrasion while helping to reduce friction at the chain/sprocket interface.
Compatible with numerous 85cc machines and intended for motocross use, this sprocket mounts as a standard replacement on 428 pitch transmissions. Examples of compatible motorcycles include: Yamaha YZ 85 (2026 models), Yamaha YZ 85 LW Big Wheels 19/16, Suzuki RM 85 STD WHEELS 17/14 (check compatibility with your model before installation).