I'm actually really surprised to see that. How is the rear clearance? Stock rims? I think I saw a shot of someone putting some "big" 28's on it and that seemed really tight. I think I'd be pretty scared to rock studded tires that close to my carbon frame and fork.

I've got a 5.9 myself and have considered fenders for the "rainy season" and/or day to day commuting, but haven't gotten around to messing with it, yet.