Originally Posted by
bruce19
Maybe I'm the one who was unclear. I'm saying that if you measure saddle height from BB axis to saddle top your fit will change if you change crank arm length. FWIW that's what bike fitters have told me as well.
That is certainly true. I've changed from 170 to 172.5 and backwards several times, and I do adjust my saddle height to compensate. Once when I forgot to reset the height I had a lot of pain until I figured it out - the saddle was effectively higher than my butt wanted it to be.
