There is generally a lot of love for schwalbe marathon and marathon pluses. I have one of these (not sure which) on one of my commuters, and am flat free since installing them several hundred miles ago. I also have some schwalbe delta cruisers on my raleigh roadster, and so far they are holding up pretty well too. With the marathons, though, watch for fit under your fenders (as I assume you would have them with a full chaincase), as they are somewhat beefier that other similarly sized tires.