Zipp Goodyear XPLR Slick Gravel Tire 700x40C Folding Tubeless Ready Dynamic:UHP M:Wall BlackLightweight casing provides a supple ride quality M: Wall protection helps prevent cuts and reduces the chance of getting pinch flats Tread pattern designed for fast racing on smooth gravel, best in dry conditions. Dynamic: UHP compound improves grip, lowers rolling resistance. Tubeless Complete, and Dual Angle Beads ensure safe retention on XPLR rims Designed to measure 40mm on a Zipp 32mm TSS rim SRAM Model ID: TI GY XPSK A1 TECH SPECS Primary Color