* Lightweight 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* For Use Only With Zipp 62232 TSS Rims* SRAM Model ID: TI-GY-XPSK-A1