[MENTION=332446]dsaul[/MENTION]

So based off everything said so far, if you are saying I can run a 27.4 x 2.4" which = 706 mm....

Then why can't I run a 700 x 40c tire on this bike, which sits at 702 mm's according to this chart? ttps://www.bikecalc.com/wheel_size_math

When I speak to Surly, they say "absolutely not" do you want to run a wheel size that small on this bike. They won't even recommend a 700 x 50c which is 722 mm's. so why can I go down that far according to you, but absolutely not to Surly?

Is that just a Manufacturer thing, removing as much liability away, and crossing their "t's" and dotting their "i's" kind of thing? Because when I speak to Surly, they say "no way Jose'" kind of thing.

If I am understanding all this correctly, then theoretically, I can run a 700c tire on there successfully, and just tour with that also...can't I?

I already have a 700c wheelset I can throw on then, and that drastically changes touring options, ideas, possibilities for the future, if this is the right bike for me long term, and on and on. So I have been lead to believe that the things you are saying are not true at all, and I simply don't understand why the conflicting stories.

That's why I would rather ask in the open because that happens to me a lot. I am utterly confused without having practical experience with jumping between wheelsets what is true, correct, precise, and accurate here. I am trying to avoid trial and error as much as possible if other's have already walked these shoes and know for sure so I don't have to.

So what say you?