Im pretty sure when i looked at the figures for my 1999 stock R1 they were supposed to be able to do 186mph!
We weren't at full speed and there were 2 of us on the bike. 174 mph was quick and dangerous enough seeing as we were going over a few humps in the road making the bike jump a bit, I was literally sh*tting myself!
My mate (the owner) claims it goes past the 200 mark. That makes sense seeing as it had a few modifications carried out on it.
I think it would take A LOT of modifications to get a road R1 over 200mph, from what ive seen 190 is fairly achievable, but over 200 needs serious h.p.
It's game of diminishing returns, as the speed rises, air resistance gets stronger and stronger (bikes are crap at aerodynamics) so you need more and more power for each step up in speed.
Also, im talking about actual speed, as a lot of bikes clocks are miles out.
Ionce read stuff about a Hyabusa getting from GPS verified 192mph (or thereabouts) to a genuine double ton. It needed about £10k of additional work or something mad like that.