Thinking about buying friend's Crosshairs but I'm afraid it will be too small for me. The frame size is a 52 cm with a sloping toptube. He has it set up with road tires 700x23c. I am 5'10" with about a 30.5-31" inseam. The reach for me is very comfortable and the bike itself feels great and the smaller frame seems really nimble. Of course I have ample standover clearance. With the sloping top tube, I have the seatpost out as far as possible (>5" of seatpost showing). Is this normal for sloping toptubes to have this much seatpost showing?
Would I be able to make the 52 work? Looking at Gunnar's website, I think the 54 would be spot on, but...
How much of a difference would it make if I were to put cross or touring tires on?
Appreciate any feedback.