What Our Gearhead(R) Experts Are Saying: "After setting up the GravelKing SK R on my gravel rig, I immediately noticed how much smoother and faster my ride felt. These roll incredibly fast for a knobby tread and handle washboard gravel and chunky corners with ease. Mounting was a breeze, even on hookless rims using just a floor pump. It's become my go-to for race days and long mixed-surface rides." We push into unknown backroads, weaving through loose gravel, hardpack dirt, and unexpected stretches of broken pavement-and for every surface, the Panaracer GravelKing SK R Tire keeps us rolling fast and smooth. As the most supple and speed-focused GravelKing to date, this tire lets us chase PRs, push limits, and cruise through adventure without compromise. With the GravelKing SK R, Panaracer brings serious upgrades to its legacy tread. The new TuffTex R casing delivers bead-to-bead protection without the weight, and its updated ZSG Gravel Compound keeps grip consistent through fluctuating temps and sketchy conditions. Add in BeadLock technology for easy tubeless setup on hookless and clincher rims, and we've got a fast, confident tire ready for rough miles and rowdy descents.