The GravelKing SS was the pioneering choice and remains the optimal selection for a smooth center tread gravel tire, delivering exceptional cornering grip. Ideal for gravel, dirt, and rough pavement. TuffTex boasts a supple, high thread count casing fortified with precisely engineered bead-to-bead puncture protection. BeadLock is engineered to accommodate a broader range of rims, including both hookless and clincher types. In most instances, mounting the tire can be effortlessly achieved with a standard floor pump. ZSG GRAVEL Compound is crafted from a proprietary ZSG (Zero Slip Grip) material to ensure remarkable resistance to temperature and weather fluctuations. This consistent rubber performance across a spectrum of temperatures provides lower rolling Resistance and improved grip. Folding (Aramid) Bead. Tubeless and Hookless Compatible in widths 700 x 30C and wider and all 650B/27.5" versions. Item Specifications: Flat Protection: Tread and Sidewall, Color: Black, Defined Color: Black, ISO Width (mm): 43, ISO Diameter: 584 / 650b / 27.5", Tire Intended Use: Gravel, Tire Diameter: 650b, Tire Diameter: 27.5", Tire Bead: Folding, Labeled Size: 650b x 43 / 27.5 x 1.75, Tire Type: Tubeless Ready Clincher, PSI: 60 / 80,