The tread pattern and compound of Continental's HSC1 (Heavy Steer Construction) tire were chosen by Continental engineers for optimal original mileage with excellent self-cleaning properties, as well as a three groove design that performs well, even on loose surfaces. A wider tread and shoulder ribs improve wear and increase performance, while the patented tread pattern and contour provide reduced stone retention and improved impact resistance. The HSC1 promises optimum casing value and long lifetimes, and is available in sizes 11R22.5 and 11R24.5 for load range H, with 12R sizes scheduled for introduction later this summer.