I too found Climbhoser's contribution interesting and helpful, and the link to the pic very illustrative.

I bought my first road bike in 20 years this year (and only second if you don't count what I rode as a kid), so I've been looking for info on fit.

I'm hoping someone can expand on what's already here. Specifically, how does the seat-to-bar drop measurement get mixed in with the other settings already discussed?

Thanks!