Pirelli SCORPION XC RC Classic Tan wall (29 x 2.4) Peak Performance for Demanding XC Racing SmartGRIP Compound ProWALL Technology Versatile Tread Design (2 Tires) Bike Tires Brushless motor delivers efficient performance 49 16 2767 Brushless motor delivers efficient performance for longer runtime (vs Includes three 72 tooth count ratchets which allow for a 5 degree arc swing for maneuverability in restricted areas Designed for the most demanding XC courses and developed with Pirelli athletes to achieve the best racing performance Decades of victories in Motocross and Rally competitions around the world led our engineers to the development of a new innovative rubber formulation: the SmartGRIP Compound for the Scorpion™ MTB which blends together opposite features: Tear resistance for the maximum mechanical grip on dry and wet surfaces together with the maximum resistance against punctures