I looked at those when I was looking to buy studded tires for my mountain bike (mainly for weekend riding, but possibly for those few commuting days when the roads are really bad). Nice tires, and inexpensive too. In the end, I got Ice Spiker Pros because I'm a bit of a weight weenie when it comes to tires. However, the Continentals would make an excellent choice for those who don't want to spend a lot and still want a good (though heavy) snow tire.