Hello, Forest here. I am a runner getting into triathalons, I was given a Schwinn frame,and Ineed to know 1. if it is worth rebuilding (it has a small split in the chain stay. the split is about 1" long ad it is inside the indention on the inside close to the seat post). The serial # is on the rear dropout and is SC300133. The color is Burgandy with cream or tan on the head tube. a sticker on the bottom of the seat post has 4130 chrome moly, it has suntour deraillers, weinmann single pull brakes, a sugino crank (tapered square) shifters are on top of the down tube and the wheels that came with it are 27 X 1 1/4, but I am pretty sure that they are not original. Any information would be helpful, thanks.