Panaracer Gravel King R 700c Tire The Gravel King R tire utilizes all new casing technology making it the fastest and most supple Gravelking tires to date. Features Ideal for gravel dirt and rough pavement Tuff Tex R provides bead-to-bead protection that represents Panaracer's most supple and lightweight casing to date. This distinctive combination guarantees an exceptionally smooth ride providing the lowest rolling resistance available in a Gravelking tire 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 | Panaracer | Gravelking R 700C Tire 700X40, Black/amber | Rubber