Panaracer Gravel King SS Tire The Gravel King SS was the pioneering choice and remains the optimal selection for a smooth center tread gravel tire delivering exceptional cornering grip. Features Ideal for gravel dirt and rough pavement Tuff Tex boasts a supple high thread count casing fortified with precisely engineered bead-to-bead puncture protection Bead Lock 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 | Panaracer | Gravelking Ss 700C Tire 700X40 | Rubber