Serfas Survivor GMKB Gator S Mountain Bike Tire - Wire Bead - 26 x 2.0 Our dual density Technology uses multiple rubber compounds used to improve feel and durability Harder rubber compounds give you improved rolling resistance and improved longevity, while softer compounds on the outer tire improve grip Will help to reduce your risk of flats through the use of thin weave nylon layers between the tire casing and tread layer Survivor Series Flat Protection offers the best puncture resistance available Tightly spaced center lugs for fast rolling All conditions tire Wire bead ensures a secure fit Max PSI = 65