Chicago, IL – November 16, 2018 - Since 2012, SRAM's XD® and XDR® rear hub driver bodies have established a universal mounting system for cassettes that incorporate cogs with fewer than 11 teeth. The interfaces make light weight wide-range cassettes possible without requiring new rear axle standards, hub redesigns, or even new cassette tools. Nearly 90 wheel and hub manufacturers have licensed the technology, and more are added every month, making it cycling's most widely adopted 10-tooth start freehub body design.
"New wheel and hub manufacturers are adopting our platform regularly, we have nearly 90 partners now, and we hope its use continues to broaden. The goal was to provide everyone with a simple solution for adopting wide cassette ranges," said Kevin Wesling, SRAM's Director of Advanced Development.
"SRAM's XD platform is really easy to use from the retailer perspective. Most wheel brands have XD driver kits available to retrofit existing rear wheels and it makes selling SRAM simple and easy. And it's refreshing to see advancements in our sport made available to multiple vendors for the ease of dealers and customers," said Matt Adams, President of Mike's Bikes.
SRAM offers the use of XD and XDR interfaces and trademarks to companies that conform to the technical specifications of the designs and agree to abide by the terms of our license agreement. Currently, 86 companies have been granted licenses to make hubs and wheelsets that incorporate either XD or XDR drivers.
The XD interface is designed for mountain bike applications and maintains the same hub spacing and flange locations used for 8, 9, and 10-speed compatible HyperGlide® freehub bodies. The XDR interface is 1.85mm longer than XD and is designed for road hub applications. XDR maintains the same hub spacing and flange locations used for 11-speed road compatible HyperGlide freehub bodies. XDR driver bodies are compatible with all XD cassettes when the cassette is installed with a 1.85mm spacer behind it.
SRAM® is a manufacturer of innovative bicycle components that was founded in Chicago, Illinois, in September of 1987, with the invention of its first product, Grip Shift®. Throughout its 31-year history, SRAM has focused on its product development innovation expertise in all bicycling disciplines. SRAM has also acquired some of bicycling's most exciting brands. With 3000-plus employees, offices and manufacturing in 15 countries, SRAM and its brands RockShox®, TRUVATIV®, Zipp® and Quarq® is the second largest manufacturer of bike parts in the world.
