60% on-road/40% offroad. More rugged offroad traction and the same balanced street performance as the original Conti TKC 70 tire. The Rocks radial rear tires are handmade in Germany to deliver offroad prowess and pair up with the TKC 70 fronts. More aggressive tread block pattern makes the TKC 70 Rocks quiet and stable on the road while providing more offroad capability. Agile on streets and safe on gravel roads. MultiGrip: Continental's own semi-dual compound technology allows different levels of hardness on the central tread and shoulder area (more mileage and improved grip). RainGrip: outstanding grip in wet weather conditions and very short warm-up phase. The 0 degrees steel belted construction guarantees high-stability and low kickback. Tubeless. Conti TKC70 Rocks 140/80-17, Rear, Radial, 69H