Had someone back into my car with my bike on my trunk rack. The only damage is at the seat tube, which got crushed pretty badly. I had this frame setup as a tourer/commuter, but I'm wondering if I set it up with some laidback upright city bars and just use it as a cruiser with no heavy loads, would it be safe to ride? I weigh a 155 lb's. The bike is a 1981 Univega Speciallissima, tange 2 tubing.
Thanks in advance.