I live about about 60 miles east of Chicago, and the winters are harsh one year, and mild the next. I bought a mountain bike for winter, and have ordered studded tires for it. My summer bike has been a trek 720, and I hope to ride it on the nice days. I was thinking of buying more winter-like tires for it. I don't want to put studded tires on it. Can anyone suggest a set of winter-like tires. My LBS does not ready have much knowledge about winter ridding. They just sell, and make general repairs.