Would you never be caught dead trusting one of the vicious beasts enough to ride it?
Do you reckon levitation rings and spells are for Wimpy Wizards?
Then the http://skyrim.nexusmods.com/mods/19741 might be for YOU!
http://www.youtube.com/watch?v=xZGqURTlDiI. Do you like what you see?
Ok, ok, sales pitch over

There isn't any quest to get it, it comes in four 'levels' (tougher and more manouverable each level up), and all the weapons are fitted by default.
So... any takers? Any questions?