Joined: Feb 2012
Posts: 19,353
Likes: 5,471
From: Rochester, NY
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
First I'll say that many ,me included, feel that the weight of the frame is the least important component to be concerned about.
Steel frames(of mid sizes) will weigh between 3 and 5 pounds, tubing dependent. Carbon frames these days are from just under 2 to about 3 pounds. (These are generalizations). So the weight gain with steel is often around 1 to 3 pounds. But it is usual that not all is equal with this comparison. With fork/head tubes and crank, BB and shells being far more manipulated in carbon then steel.
Your frame tubing decal says in common tubes- Butted tubes, better the standard 4130 cromo and, the one that I like, the frame's extra light (what ever that means).
What can't be measured or weighed is how the frame fits your needs and how it helps the bike feel just so. These two aspects are worth pounds IMO. Andy.