Grandtrek ST1 is a high performance all-season tyre for powerful 4x4 vehicles. It is a specially developed recreational 4X4 tyre. The computerized tread pattern of this tyre has extremely rigid central rib, which provides good handling response and driving stability. The random directional siping and S-shaped shoulder block sipes enhance the traction in snowy and wet surface. Small vertical channels in shoulder blocks help in reducing the noise travel. The chaos pitch arrangement ensures smooth riding. This tyre gives excellent on-road performance and ensures low noise emission along with improved snow performance.