The XDR driver body is a universal mounting system for cassettes that incorporate cogs with fewer than 11 teeth. It allows for lighter and more versatile drivetrains without requiring new rear axle standards, cassette tools or hub redesigns. The XDR interface is 1.85mm longer than XD and is designed for road hub applications. XDR driver bodies are ocmpatible with all XD cassettes when the cassette is installed with a 1.85mm spacer.
Zipp Hookless Technology
Zipp graphics and cosmetic identity that scream speed
Fastest with 28mm, fits wide gravel tires as well
76 / 176 DB hubs with Center locking interface
XDR driver body option
Wide rims optimize tire profile to allow lower tire pressure, especially with tubeless. The result is a larger contact patch for increase grip for confident cornering, descending, and handling in wet conditions.
Lower tire pressures and larger volume provides a compliant ride with fewer vibrations.
Significant watt savings when running larger tires at lower pressure.
Wide hookless rims create a seamless transition to the tire, reducing drag.