Continental Tire's HDR1 (Heavy Drive Regional) all-position tire integrates tire technologies developed to combat wear and tear often created by rough, unpredictable road conditions. The tire features a proven open shoulder design which offers excellent wet and dry traction. A highly resilient tire with long mileage capabilities, with 28/32nds of tread depth, it maintains a resistance to irregular wear and includes a robust cut- and chip-resistant compound for long, even wear and durability. The HDR1 has Continental's stone ejection technologies which reduce the retention of stones and penetrations to the tire's casing, helping increase the tire's longevity. It is available in the 11R22.5, 11R24.5, 275/80R22.5 and 285/75R24.5 sizes.