I went by VeloSports Performance Center in Asheville, NC for some TT position tweaking and to see their new Dartfish software. Andy had worked on my initial position in February, but I wanted to see if there were any improvements we could make since I now have a few races and many miles on the bike - plus I am down about 12 pounds and thought I may have a little more clearance between my thigh and midsection. Immediately Andy noticed that I had moved the saddle to a more nose down position. Stupid me did not consider that since you ride these bikes on the node that this is equivalent to lowering the saddle height. When pedaling it was pretty obvious that my leg was not extended very well. The saddle was raised a little under half a cm to get me in the proper position. There were two significant changes that were made. First was to move my elbows in. In the first session the goal was to align my wrist, elbow and shoulder in a single plane. However, after some testing on his teamates early in the season we moved to a slightly elbow in position. The second change was to bring the bar extensions up a little. Because of the way my bars are made moving the elbow pads moved me up slightly so spacers were removed and I actually ended up a little lower in the front than when I left the last session. Right now I am at just under 14cm of drop and the saddle is 5.5cm behind the BB. One of the key things that I was shown was the difference it makes when I pull my shoulders in and slightly hunch my back. While not very comfortable, I could see a signifcant different in the profile and rear views as my head almost vanished completely when filmed from behind. It is going to take a lot of practice for me to get used to this. I did 25 minutes in the position today and I had to really focus. Another thing the camera picked up was my tendancy to look down from time to time like I am checking my gearing. No idea why I do this, but now that I am aware I can try to stop it.
Here is what I left with:
PS, if you are going to be fit on a TT bike, take your aero helmet.
PPS, one other thought I had been wearing my helmet tilted back, but not nearly enough. Now it is almost up to my scalp. While this defeats some of the purpose in wearing a helmet, it is well worth it since it will likely move me from 13th to 12th in the district TT championships...