Originally Posted by
seeker333
You should size it so that you have at least an inch clearance over TT with the largest size tires you intend to run, for the terrain you expect to use it on.
I think it's more important, like with any other bike, to get the size that has the correct top tube length. In other words, concern yourself with that element of the fit first.
I agree that the way the LHT is sized, you'll usually come out fine in terms of standover height if you get the proper top tube length, even with fat tires.