204, according to my GPS. ONCE. Most of the time, i dont tread much beyond 130 or so.
of course, last halloween a gf of mine wanted to "go as fast as i wanted to on the bike" with her on it. We got up to 183 according to my GPS. The amount of trust you have to have in your rider at that speed though (not to mention the trust they have to have in you) is ridiculous, and shes the ONLY person i would consider doing that with.