Maximum traction in soft conditions - Mud-Phobic Bars maximize cleaning capability to prevent mud and dirt from building up between the knobs, which ensures maximum traction and acceleration Maximized feedback at varying lean angles - The intermediate tread blocks on the Soft tire are positioned in staggered rows to maximize traction and feedback throughout varying lean angles High performance in softer terrain - Specifically designed to provide a high level of performance on a wider range of terrain from firm soil, grass, mud, and even sand Specifically designed to provide a high level of performance on a wider range of terrain from firm soil, grass, mud, and even sand Not for highway service (NHS).. STARX 5 SOFT 70/100-19