I do not think Chromoly was really phased out. Steel is just not used anywhere near as much as it once was. I believe most of the bikes at that level are now aluminum. Higher grades of steel are used for higher quality steel frames. I used to have that exact same bike. I gave to a friend in need, who still has it. It was a nice bike. He accidently ran over it with a vehicle. The fork was ruined and had to be replaced. The frame was straightened by a local bike shop. It is not perfectly aligned, but you have to look real close to see it, and cannot tell when it is being ridden. Can't do that with aluminum or CF, not intending to knock those materials. I am sure others with more knowledge will chime in.