The Michelin Wild Race'r Ultimate Advanced 29in Tire boasts a rare combination of fast rolling efficiency and aggressive traction. This unlikely combination owes its existence to intelligent knob construction and Michelin's GUM X series compound, which work together to offer the perfect balance of grip, efficiency, and durability. This tubeless 29er tire's hollow, diamond shaped blocks alternate between being bridged together and being solo along the center tread zone to reduce tread flex under acceleration and braking. Set at 45 degrees, the blocks are situated to increase ground contact and grip the dirt. Along the shoulders, Michelin incorporates an updated tread pattern utilizing more aggressively shaped knobs to increase lateral grip for confident handling.