I own a Felt S25 that I bought brand new in 2004. I paid $1,600 for it. It's a good bike - very light and outfitted with some good components. Some things to look out for: 1. The aluminum on the frame can be quite thin in the downtube. Check it to make sure there are no dents. 2. The brake calipers (Tektro) are not good. Consider changing them out 3. The wheels (Alex) are rumored to be substandard. I wouldn't know because I changed the wheels after a few thousand miles.