whats the difference between buying a titled vin tube and a titled frame? if anything i would think just buying the vin tube, although cheaper, would be more work for somebody that stole a bike because of all the cutting, welding, painting and what not that goes into transplanting the tube on the original frame. buying a whole titled frame would only require you switch everything over to the new frame. besides, the majority of people that steal bikes end up either selling them or parting them out.
exactly my thinking.