For over a decade, NULL WINDS Technology has focused our aerospace engineering analysis to overturn mistaken assumptions regarding drag-reduction on open-wheeled vehicles. ALL open-wheeled vehicles waste fuel, needlessly. The solution is simple; shield ONLY the faster upper wheel surfaces. Introducing our simple, cost-effective Upper Wheel Deflector panels for LTL box trucks and semitrailers. Measured with MVTS and in the ARC wind tunnel. Likely 1-3% fuel gains on box trucks. Please visit to learn how. Our IP: 27 patents (& first utility patent for an aerodynamic wheel fender).
Brands: AERODEFENDER