Skunkworks, mine had 32mm Kenda Small Block 8s, it could have taken bigger but you'd lose some movement in the drop outs, you wouldn't be able to mount the wheel right forward. The 2012 frame has more room though - they state it'll now take 35mm CX tyres.
Here's another shot.
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Skunkworks, mine had 32mm Kenda Small Block 8s, it could have taken bigger but you'd lose some movement in the drop outs, you wouldn't be able to mount the wheel right forward. The 2012 frame has more room though - they state it'll now take 35mm CX tyres.