Born in the American Midwest, gravel riding is one of the fastest–growing styles of cycling. The sense of adventure, conquering new challenges, and simply experiencing a new style of riding are some of its big selling points, but doing so without the proper tires makes the difference between having fun and cursing and hollering on the side of the road. The Pathfinder delivers the versatility that these adventure-laden rides deserve—fast rolling, lots of grip, and a whole lot of fun.Specialized Pathfinder Pro 2Bliss Ready Tyre FeaturesCasing: 120 TPIBead: FoldableButyl wrapped bead = 2Bliss ReadyCompound: GRIPTON®Flat Protection: Endurant Casing and BlackBelt650b x 47mm [1.75], psi 35-65, approximate weight 555g700 x 38mm, psi 50-80, approximate weight 480g700 x 42mm, psi 50-80, approximate weight 540g\"