Originally Posted by
Loose Chain
No, it does work for you, you just disagree and I would say quite likely your saddle is too high, what tells you that 31 is your magic number, a divining rod? It is currently in vogue to ride with the saddle jacked way up and the hips rocking. I see it all the time. Actually, I use 1.09 X PBH.
No it doesn't work for me. How did you divine that my saddle is too high? Sure wasn't PBH x 1.09. That formula increases my saddle height to 36-37 inches. I guess I fall in between the formulas, which have a ~26% difference.
What tells me my seat is too low??? The fact that my knee is bent significant at the bottom of my downstroke is a big clue, knee pain and of course the fact that I'm 6ft tall guys don't belong on 17" frames. My Allez (that fit properly) was a 56cm (aka 22') frame. The manager at the LBS set me up on a ~21" frame today. I think that covers it.
I'm sticking with the old heel barely reaches the peddle when fully extended method, but the mathmatical approach is interesting.
