Interesting question. I was running 25c with guards no problem over the winter, so you could get something fairly chunky in there without them. Bear in mind that the rear wheel is slammed right forward in the top photo and those are 23c tubs.
@NickCJ started
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Interesting question. I was running 25c with guards no problem over the winter, so you could get something fairly chunky in there without them. Bear in mind that the rear wheel is slammed right forward in the top photo and those are 23c tubs.