In Reply To:
Thanks Gerard for pointing out for us your objections to Tom's article. However, my conclusion from this discussion is that if someone experienced like Tom is having a hard time finding out which P3 C size (if any) fits him, that means that the bike fit of the P3 C is tough. And Gerard, I don't think you will be able to make the bike fit of everyone that buys the P3 C!
I think you are drawing the wrong conclusion. The P3C has a very wide range of fit options. So for example the 51 and the 54cm overlap a bit in people they can fit. It's not that Tom has trouble fitting on a P3C, it's that he fits on two. Sure, one may fit slightly better than the other, but both fit fine. That's a much better problem than to have none that really fit. I think Tom will agree that his problem with the P3C is a problem of riches.
I'm not saying Tom can fit on everything from a 48 to a 61 as long as he gets the right stem and seatpost (that is true but only if you consider fit narrowly as getting the guy in the right position, not if you consider handling of the bike) but Tom can more than likely fit on a 51 and a 54 and get very good handling on both. Maybe he likes the 51 better (bit more weight on the front wheel, etc) than the 54, maybe the reverse, but that's really a very personal preference in the handling department.
As for making a P3C fit for everybody who buys one, I guess I don't have the time to do it but in almost every case it can. We take these things to test ride demos at Ironman, and I have never had to tell somebody to go away without a test ride. We honestly are always able to set it up properly. so if you bought a P3C, come visit me at Ironman (I think Florida is the first one I will be at again).
Gerard Vroomen
3T.bike OPEN cycle