Description
Off-road engines demand oil that matches the intensity of racing conditions—extreme heat, aggressive throttle transitions, and continuous high RPM operation. BEL-RAY Thumper Synthetic Blend 10W-40 delivers the thermal stability and wear protection single-cylinder engines need to perform reliably lap after lap. Choose this formula when stock oil falls short of your machine’s potential.
- Synthetic Ester blend
- Racing-grade formulation
- 10W-40 viscosity grade
- 4-liter container
- Extreme temperature performance
- Valve-train wear protection
- Ring and cylinder safeguard
- Piston protection included
- Single-cylinder optimized
- Off-road motorcycle rated
- ATV-compatible formula
- MPN: 99520-B4LW
