Hutchinson Python NG 29er Tubeless Ready Tire (Black, 29 x 2.10-Inch) Hutchinson took the best selling Python tread design and rolled into the larger 29er size. Python is a perfect 29er tire with a large footprint and great traction. Tubeless Ready technology allows this tire to be run 'tubeless' with the use of sealants such as Hutchinson's Protect'Air Max.. The bead of the tire is shaped to work with UST rims. Fast rolling center tread for high speed is combined with aggressive side knobs for sure footed cornering and control. Python is perfect in dry or Sandy conditions 127tpi casing is supple and lightweight. Only 645 grams The Tubeless Ready design combines the tubeless capabilities of the Tubeless Light system with the lightweight of the Airlight casing. This reduces the weight to a very light 540 grams.