Originally Posted by lazerzxr

The only real way to know that is from an xray looking for it, a bike fitter can only judge based on what they see. More likely you have less flexibility on one side which gives the appearance of a short tibia. If he has shimmed you to take account of it then the flexibility issue wont be solved and you'll end up where you started

Originally Posted by lazerzxr

Also bike fits are over rated, go to 3 different "pro" fitters and you will get 3 different fits, all completely different and all will tell you that theres is "right" I gave up paying for fits years ago and spent the money on some better tools to adjust things myself. Ive never been more comfortable on my bikes