Carcass material improves damping and absorption which allows the MX34 to maintain its performance up to 30% longer. PCBT (Progressive Cornering Block Technology) improves grip while cornering and enhances feel and absorption. Features advanced mud evacuation technology that keeps you in control even in the muddiest of conditions. A new rubber compound increases traction while maintaining durability. Works in a mix of packed and loose soil. Works in soft terrain and loamy soil. Not for highway service (NHS)..