The bike shop that refurb'd my Voyageur put unbelted IRC tires on it, and they flatted within two days. I got Tuffys, and was doing well with them, but thought I'd get Gators for added insurance.... really happy with them. No flats (though I do have the Tuffys under them) after 600 miles or so, and they ride much better than the IRC tires. Since they are only 28mm wide (though they are marked as 1.25"), I was surprised that they were so much better feeling than the old 32mm tires, but they are. I keep them at 110psi rear and 105psi front since I'm a bigger guy.