I used the big box 1952 Columbia for a recient build off. I only used the frame, tank and head set. I made a single speed monster cross gravel grinder. I had a blast building it, gravel racing it (70 miles) and single track. It made a real nice and different klunker. I used 700c wheels, with 40mm tires, drop bars with MAFAC canti brakes. A lot of different bikes can be made from big box bikes.Looks like ....'s is clearing out some of their "Columbia" bikes for half price.... They're kinda ugly but maybe have some potential!?