It's 23.5" from center of crank to center of seat tube top tube. You seem like someone who might have an opinion on what wheelset would be appropriate for a 6-spd Expedition. I posted this question in a separate thread. I has a low-end non-matched set now that I would like to replace. I've seen that Miyataspec site referenced before, but I'm already a member of so many forums, I'm reluctant to sign-up for another just to ask 1 question.