PBI Countershaft Sprocket Upgrade your drivetrain with the PBI Countershaft Sprocket — a precision component engineered for durability, performance, and exact fit. Ideal for OEM replacements and high-demand applications. Precision CNC machined from high-grade chromoly steel for consistent tolerances and reliable operation. OEM-compatible design: meets or exceeds factory specifications for fit and performance. Heat treated for extended service life and reduced wear under heavy loads. Electroless nickel finish provides corrosion resistance and a smooth surface for longer component life. Special broaching ensures maximum spline-to-shaft contact for improved torque transfer and reduced play. Perfect for mechanics and performance enthusiasts who demand a rugged, long-lasting sprocket that installs quickly and performs reliably. Trust PBI for quality drivetrain components that keep your machine running stronger, longer.