No not speed. I am talking RPM. I have often met and heard people doing sprints on 53-14's 15's till they reach 100 RPM. Most of the time these people start at 15mph or faster. I am trying to gauge my power here, I think it takes me a while to get to 100 RPM , Im not the big burly type. So give no wind and an almost horizontal road how long does it take you to get from 0-100 RPM on 53-14(in my case of a compact maybe 50-12)? I am trying this this weekend. It should be about 30mph on 700c wheels.