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).. TIRE MX34 110/100-18