I just switched to the schwalbe marathons two weeks ago (ordered from biketiresdirect.com). I have logged about 300 miles on them and absolutely love the ride so far with no trouble (other than trying to mount the suckers on my rims). I ditched my Conti Town & Country tires because I had a flat about every 10 days with them and the side walls were starting to shread after a mere 2100 miles. -Scott