Vee Tire Co. Crown R Series Mountain Tire: 29" x 2.3" 185 tpi Folding Bead Black Short, tightly spaced fast rolling center knobs and taller side knobs provide traction and cornering control Dual Compound is harder in the center for added durability and fast rolling while softer on the sides for enhanced cornering control Tire Bead: Folding ISO Diameter: 622 / road / 29" ISO Width: 58