Schwalbe Racing Ralph 29 x 2.25’’ Tire Folded Evo Tubeless Super Ground Addix SpeedThe Schwalbe Racing Ralph 29 x 2.25’’ Tire is engineered for racing with solid traction and quick acceleration. The Distinct shoulder studs for excellent lateral grip, while smooth rolling properties and performs extremely quiet. This tire has a folded bead, has 67 TPI, and is tubeless ready. Weighs 655g. The tire pressure range is 26-54 PSI. The Super Ground combines light weight and stability. Balanced ratio of puncture protection and smooth rolling. For flowing trails, long rides and any terrain. The Addix Speed compound works best for XC racing specialists. Available in Black.4026495879514