And now for the helpful part, I would error on too small a frame rather than too large. You can always get a longer stem if but with a large frame, there is little you can do to shrink it to fit. FME (from my experience) I bought a friend’s road bike which was one size too small, but it was a great bike at a price I couldn’t deny. A longer stem and judicious seat positioning made it perfect - plus it is just a bit lighter than the correct sized frame.