Specialized Ground Control Sport 26" Tire Control the Trail Specialized designed the Ground Control Tire to be an exceptionally versatile trail tire. The tire features CAD engineered knob shapes which provides optimal braking performance and increased traction while still maintaining the best possible ground control. Combining this tread pattern with the GRIPTON compound helps make this tire the perfect choice for epic trail rides in any condition. If you also seek the utmost best flat and sidewall protection, you will be happy to know this tire also features GRID tire protection to keep you rolling at all times. If you are looking for a good all-around, do anything tire, you'll be more than satisfied with the Ground Control Tire. Article: Learn more about Specialized Bike Tires REVIEWSBike Radar - "The new Ground Control largely lives up to its storied namesake. We expect riders living in areas with even moderately tacky dirt will probably be happy with it mounted either front or rear, but those in more desert-like climes might want to restrict it to rear use. - James Huang Features Block-in-block tread design uses a taller inner block to pierce the ground and claw for traction. larger outer structure supports the inner block for additional speed, traction and support Specialized Part Number: 00122-5041SPECIFICATIONSSize26" x 2. 35"Conditions Hardpack, Loose over hard Bead Wire TPI60Compound-Protection-Type Clincher Tubeless Compatible No Intended Use XC, Trail Weight730 g | Specialized | Ground Control Sport 26" Tire 26 X 2. 35