User blog comment:Halomasterjk/Skyrim DLC Rumors: Dragon Riding?/@comment-5280592-20121020220432/@comment-4057437-20121023005831

Some of the spikes on a Dragon are as long as one's forearm, we see no problem with using them as handles, and we said SIT, not stand. (Of course, Skyrim's version of the NTSB mmay mandate a seat belt!)