When speed is on the menu, low profile knobs are essential to prevent energy loss. This often comes as a sacrifice in the traction department. But, with the Michelin Wild Race'r 29in Tire, intelligent knob construction reduces that negative impact. To start with, this tubeless twenty niner tire's hollow, diamond shaped blocks alternate between being bridged together and being solo. This happens along the center tread zone, and it helps to reduce flex under acceleration and braking. Additionally, it enables a conforming level of flex when needed. Meanwhile, the bridging ties into the side transition blocks. This gives the tire consistent traction during turn in, and it ramps up as lean angle is increased. The enhanced traction is from more aggressive knobs, with additional siping. Along the Wild Race'r Tire's outer edge, reinforced triangles dig in to loose soil for confidence inspiring handling. The Michelin Wild Race'r 29in Tire has a folding UST Aramid bead and is available in either a 2. 1 or 2. 25 inch width. Please note that this tire is sold individually, and that it does not include either tire sealant or rim tape.