Fitting numbers

  The other day one of the shop mechanics found their way down to the fitting area and asked for the fitting numbers for a customer. It seems reasonable that a customer who got a fitting could have the numbers to set up another bike. I often joke that people should bring their bike fitter on cycling vacations, because that's what I do.  So why don't I keep numbers for the clients I fit?  One possible reason would be that I'm an organizational disaster area, but that's not it.  It goes back to critical thinking - everything should be tested. A bike fitting on a stationary trainer is an untested position. Riding on the road throws in a lot of other factors. I fit on a stationary trainer because it's a controlled environment, but I also have a background in coaching, and I ride with my athletes. It's pretty rare that I don't see something out on the road that didn't show up in the fitting.  After thinking about the question for a while I realized that the only fitting numbers I keep are from people I've seen on the road.

   This begs the question - why is there no on-road part of the bike fitting?