How do I change the endcaps of my ZR1 hub? August 11, 2021 21:36 Updated See the ZR1 hub service manual. Related articles Do you need a spacer on the XDR driver body when fitting a cassette? What driver bodies are offered for ZR1 hubs? What tubeless tires are compatible with Zipp’s hookless rims? Do I need an XD or XDR driver to use an XD compatible cassette? How do I service my ZR1 hubs? Comments 0 comments Article is closed for comments.