Ok - I think it should be made clear that if anyone is serious about this as a build idea that they should prolly be getting 24" juvenile Mtb rims and not adult 26" ones.

I was just playing around with the Photoshop again and while 26" might be something that'd work for a road machine, once you factor in the extra fork height for the suspension-travel, the angle of the forks starts to look distinctly 'Chopper' like and not a bike I'd wanna ride up the hills...

Here's a crap diagram with rims to scale. *RIMS* being the operative word; the outer edge of these rims is the outer edge of the rim - so a tyre would be as much again OUTSIDE the edge for a roadie wheel and 2-2 1/2 times that with a knobbly.



But I hope it makes sense. 26" with susp-travel rise would be too clownbike to be a usable machine, because you can't add rise to a 'hardtail' rear triangle.
But 24" might be ok;