Originally Posted by FBinNY

Question.


If the 26.6 post fits and works, why would you even consider another? It's like saying I've worn size 9 shoes all my life, but I'm thinking of trying some size 7.


Post fit is very critical, and has to be a running fit inside the tube. Otherwise, even if you can clamp it at the top, it's rock and move around below, creaking and putting undue stress on the seat tube just below the clamp