Robert Driskell wrote:
as riders we are the only ones that can critique our fit. A bike fit is all about making the rider comfortable and efficient on their bike. I have been fitting bikes a long time and can say we cannot "look" at a picture of you and tell you what you need to do to help your fit. Please seek out a bike fitter and if the one you are seeing now can't help please find another.
can i agree with your conclusion, but not your premise?
if one of the tools fitters use are body angles looked at in profile. so, while not entirely precise, isn't a video in profile analogous to that? especially if you can draw in angles to a precision that matches the ranges established by motion capture software based fit systems like retul?
the problem i have with "fit by internet video" is the lack of the rest of the tools. for example, i just hosted a group of fitters last week here at the compound, where they fit people on retul, purely custom, guru and exit cycling fit bikes, to see the similarities, differences, and features. they used the saddle swapping systems on each, and also a "switch-it" device on one of the fit bikes. we have both a velogicfit motion capture system here and a retul. so, folks coming to our workshops can use a variety of tools so that they know what tools they might want in their studios.
hard perhaps to see all this, but the image below is a whole bevy of saddles tried, and then the subject (the lady here) holding the saddle she liked. all the others she hated. we took a poll recently, and just over half of slowtwitchers were on their 3rd, or more than 3rd, tri saddle, and only half of them were done looking. she was able to try all these saddles out in the space of a half-hour because we had a switch-it in-house on one of our fit bikes.
she couldn't really even begin the fit process until we'd found her saddle. once we began it, we could make changes to her fit coordinates, immediately, while she was pedaling, at her target power.
now, dave, with whom you're bantering on this thread, fits folks over the internet. and, he's got a fit bike, and all the typical saddles, aerobars, etc., you'd use in a fit studio. what dave CAN do over the internet is fairly well use videos of consumers. what dave CANNOT do over the internet is all the stuff a good fitter can do in his studio.
but only if that good fitter has the tools, and the knowledge of how to use the tools, and the saddle inventory, what have you. the reason dave even has an internet fitting business is because there aren't enough people out there who can perform the basic stuff, with the basic necessary tools, in person.
Dan Empfield
aka Slowman