Originally Posted by
bradtx
djb, More telling would be to measure BB drop, what the frame is designed with to achieve a desired BB height with a spec. tire. Run a string from the fork's drop out to the rear drop out on the same side keeping the fork straight ahead. Measure from the string to the center of the BB.
Yep, if you don't account for tire height differences then there's not much point in measuring BB height.