• Fastest race wheel on gravel, features tubeless and hookless rim profile • Ultra-wide internal profile for decreased rolling resistance, ability to run pressures under 30psi (max 50psi) • Wide and deep profile integrates seamlessly with gravel tires to increase aerodynamic efficiency • ZR1 DB hub with 66 points of engagement • Center locking rotor interface. Lockring is included with the wheels • Lifetime Warranty • COMPATIBLE ONLY WITH APPROVED TIRES. See Zipp.com for list. • SRAM Model ID: WH-303-XPSW-A1
