The design and layout of the knobs and the overall structure provides extreme traction on the most difficult terrains of the most demanding off-road rallies The vertical line of knobs works as a claw to penetrate the ground and generate traction The block's surface is wide and provides a broad contact patch that ensures grip on hard terrain KAROO™ Extreme combines both natural rubber – for mechanical resistance – and synthetic rubber – for wear and knob-tearing resistance High percentage of carbon black in the compound increases resistance to stress, even at high temperature Improved overall flexibility of the structure provides excellent puncture resistance under low pressures TL/TT design: can be run with or without a tube R-rated for speeds up to 170 km/h (106 mph)or S-rated for speeds up to 180 km/h (112 mph)