Originally Posted by politburo

Looking for some advice.

I have a 2007 iron horse roadbike, which is pretty decent as a commuter, but the frame(butted aluminum) is kind of beat up. I have this idea that I will replace the frame with something from craigslist (ie, swap the frame for a giant aluminum frame, get a lighter crankset, etc.)

Is this worth doing, generally speaking? Should I bother getting another aluminum frame if it will not make much of a weight difference, or should I just save my money and buy a better bike further down the road?

I do enjoy building and tinkering, so thats a pro for this route; and I definitely cannot shell out 800+ on something super nice.