I used to do 30 mph in Davis full tuck on my Trek 7500 FX (fixed police speed trap). Never brought the time trial bike up there, but I'm pretty sure I could do at least 33. I did 31 on my Trek 1220, but that had triple gearing and box section crap wheels. Note, there's almost always wind in Davis, and it's a small headwind going to that speedtrap. Where I am now, there are very few flat sections that are long enough for a full out effort. And I still have only crap bikes