Zipp Freehub Body ZR1 XDR

The Zipp ZR1-XDR freewheel body is designed to modify rear wheels with ZR1 hubs to SRAM XDR standard for use with 11-speed or 12-speed SRAM cassettes.

TECHNOLOGY

• The XDR drive actuator is a universal mounting system for cassettes with sprockets of less than 11 teeth. It enables lighter and more versatile drives without the need for new axle standards, hub conversions or even new cassette tools. The XDR interface is 1.85 mm longer than XD and is designed for racing hub applications. XDR drive units are compatible with all XD cassettes when the cassette is installed with a 1.85 mm spacer behind it.