West Coast Chopper Bicycle West Coast Choppers Say They Don't Touch Cars Beyond A Certain Age -- Does Anyone Know What Age That Is?

West Coast Choppers say they don't touch cars beyond a certain age -- does anyone know what age that is? - west coast chopper bicycle

I remember them saying something like "do not touch the cars later than 1942" or something. I do not remember the date. Does anyone know the answer to this question? Thank you.