Thanks for the replies, I use nimbus armadillo tires for everything but winter. My wife needs new tires for her comfort bike which will be my old tires. I am such a good man. She rarely rides and the tires are still in nice condition. I have marathon winters and really like the ride but agree that anything over 2" of snow is a challange. The marathons seem comparable to the armadillos but with a little higher psi in my size. Thanks again.