Reynolds XD Driver $74.95
Welcome to the future.
When the XX1 groupset landed, the world finally was freed from the excess weight and pedaling inefficiency inherent with a front derailleur. However, the massive 10-42 cassette requires the use of an XD type driver. So, if you’re running Reynolds wheels and want to get on board the drivetrain of the future, the XD Driver is precisely what you need.
Reynolds changed up its freehub design for 2014, so you’ll need to figure out which hub style you have to ensure you get the correct part. The 2013 style is listed as the Pawl style, while the 2014 version is listed as the Ratchet style. A quick way to tell the difference is that the 2014 hubs have a serial number behind the drive side flange. But to be sure, it’s best to remove the freehub, and check the location of the pawls. On the 2013 freehub, the pawls are located in the freehub. On the 2014 version, the pawls are located inside the hubshell, so they’ll stay put when you pull the freehub.
The Reynolds XD Driver is available in two sizes, one for the 2013 style, listed as the Pawl hub, in the color Red, and one for the 2014+ style, listed as the Ratchet hub, in the color Black. End caps are included.