Originally Posted by
Kontact
It isn't my example, it's Bruce's example. His 6' friend, who would normally ride a 58cm frame, is riding a 54 - which is two sizes smaller. And we know his friend's proportions, so we know that the 58cm frame's TT would be slightly short for his torso length, which means we can assume that even on the 58 he would be using a longer than stock stem.
So the comparison that Bruce proposed is two frame sizes + additional stem length. I'm not the extreme one - Bruce's friend is.
We talked it out and as you have written, I believe our common ground is...no single metric can be used reliably to put a given rider on a given frame. That and you and I can ride more than 1 frame size and still have the 3 pts of contact we like. So that is our agreement I believe and likely 'nuff said.