If you need to go fast, go with the Hutchinson Python NG 29er Tubeless Mountain Tire for best results. The Python NG has a central tread with short linked knobs for low rolling resistance and a supple and light 127 TPI casing. The fast rolling center tread for high speed is combined with aggressive side knobs for brilliant cornering and control. This makes the Python perfect in dry or Sandy conditions. The Tubeless Ready design combines the tubeless capabilities of the Tubeless Light system with the lightweight of the Airlight casing. It can be used with or without a tube.