Originally Posted by
intransit1217
Took a tape to my bikes today. BB to seat top are all exactly the same. ETT is within 3 cm of each other as is seat tube length and seat post center to grip distance. Excepting the extra reach to the hoods on the road bike.
Question: Do custom frame builders build frames down to the millimeter? Or do they have smaller increments between frame sizes than shelf mfgs?
It probably depends on the builder, but why don't you toddle over to the Framebuilder's Forum and ask there?