Bought this bike from a friend last night. I know it's built by Murray, but there are no indications as to what exact brand/model of bike I have. I tried finding pictures online of this frame style with these specific racks, a (missing) tank and chain guard, but I haven't had any luck pinpointing what I have. It doesn't help that I don't know the exact name for this style of frame, as it isn't a standard cantilever bike, nor is it the later Spaceliner-style frame. It's in overall good condition, but I did notice that the dropouts were bent while taking these photos. Any idea what exact kind of bike I brought home with me?