Why not use your calculator and see what the top speed can be. I don't have all the figures but you'll have to count each gears .. umh something. Sorry I'll leave this to someone else. So nevermind me :lol
About 1/4 mile runs.. I've seen/heard people say they got below 10secs.
Thing with the R1 is that it's very willing to wheelie.. and it's a pain just to keep the front down. But I think THAT is a good thing