TyreLegendary tyre designer Frank Stacy provides another race-proven design with the XR2 Team Issue mountain bike tyre. It's Tubeless Ready for fewer flats, and features a specifically-formulated compound for lightweight construction, improved cornering traction, and low rolling resistance. Bontrager XR2 Team Issue TLR Tyre Features Diameter : 29 Width : 2.35 TPI : 120 tpi Durometer : 62a/60a Type : Tubeless Ready/Clincher Puncture Protection : Inner Strength Colour : Black Weight : 675g