Both interfaces allow for a 10-tooth start cassette in a way that allows for the strongest hub, the lightest cassette and derailleur (because a larger cassette means a larger derailleur) and optimal load transfer from the cassette into the hub.
Articles in this section
- Do I need an XD or XDR driver to use an XD compatible cassette?
- Where do I get an XD or XDR driver for my wheel?
- Why did SRAM create the XD driver body interface?
- Why did SRAM create the XDR driver body interface?
- What are the main benefits of the XD and XDR interfaces?
- What is the difference between XD and XDR driver bodies?
- Are XD and XDR open standards?
- How do I obtain a license to design or manufacture XD or XDR compatible hubs?
- Do XD or XDR equipped wheels require special frame rear dropout designs?
- Do SRAM XD cassettes require different installation tools than traditional cassettes?