Originally Posted by
waterrockets
If you're pulling the front wheel off the ground, it's because of bad pedaling form rather than fore/aft position (unless you're WAY back). Your arms wouldn't have anything pulling them up if you hadn't sent your torso flying up. Torsos generally fly up when you push into the bottom of the stroke (where the pedal can't get away from you any more), or when you push way too tall of a gear to start.
Start your sprints as close to 100rpm as you can. Make sure you're not stabbing at the bottom of the pedal stroke.
OK the too tall of a gear makes sense because when it happened to me today it was worse than usual and it was from a slower leadout than usual when I jumped (maybe 25 instead of 28) but I was still in the 53/12 because with the bar end friction shifters I tend to just go all the way down instead of risking being in between gears.
But can you explain the peddling part a bit more, ie what I should be doing. I have not thought about form much up to now, I just try to rip the bike apart, so I am not sure exactly what I am doing with my upper body. I thought it was relatively still, but that hasn't been what I was focusing on.
thanks
-cgb