Hey all -

I'm looking to pick up a new bike to be my commuter, and since you all seem to say nothing but good words about IRO, I was interested in the Mark V . However, since I'm in the pothole/snow belt, I would like the ability to put on some thicker tires sometimes.

I know I could just wait for the Rob Roys to come out as well. But I'm also impatient

What size tires can you sucessfully run on the Mark?