Heres the compilation of 100+ rides so far....
Honda XR600R: 100mph? (speedo only goes to 93mph/150kmh)
Aprilia RS125: 105mph indicated
Honda CBR250R: 115mph indicated
Suzuki GSX-1100EF: 120mph indicated
Each of those is the record for the bike, usually only hit once or twice for kicks on a very long, quiet straight about 20km out of my sleepy country town. I generally enjoy tighter backroads at speeds that are a bit saner... 50~80mph is a quick speed for the roads I like to ride. Regardless, I'll get you guys a video of me tonning it on the XR600R if you want.
Hoof - don't worry about age, do what you feel like. Hell, my grandfather is 84 and still rides a motorcycle. Looking to 'downgrade' from his BMW GS650 to something lighter - he was asking a lot of questions about my XR600R last time I saw him actually.
teazer - while I agree not to encourage people beyond their limits, I see nothing wrong with an opening for free expression. If people want to yack it up and talk about the rides they've done and the speeds they've gone then I've got nothing against it. Just don't do anything stupid like show your face/bike/house in the same video you're doing illegal things haha.
Cheers - boingk