This past weekend I suffered arm pump so bad that I could barely feel my throttle hand, so much so it basically cost me a finish. I crashed, twisted my fork, and basically had 2" of travel on a rough course and couldn't continue. I've been told that its because of nervous energy, dehydration, not breathing enough, etc etc.... but all of which I was working on. I wasn't very nervous, I drank a lot, and I focused on my breathing before and during the race. Does anyone have some things that work for them in overcoming arm pump? That was really the first time I suffered from it and it sucked. People who were slower than me were passing me by and that's just frustrating. I hate to sound like a "pro practice racer" but just out for a regular non-race ride I can ride as hard as I can all day long at race pace. No problems whatsoever. In fact, I ride faster on a casual ride than during a race! ugh... someone please give me some pointers.......... thanks.