WE JUST BOUGHT 2 1988 COLUMBIA MOPEDS, THEY WERE BOUGHT AFTER THE ORIGINAL OWNER PURCHACED THEM,RODE THEM HOME,PUT THEM IN A GARAGE AND FORGOTTEN ABOUT. WHO IS THE MANUFACTURER? WHERE ARE PARTS AVAILABLE?ANY HELP WOULD BE APPRECIATED! 50.CC ,MITCHLIN TIRES, THE GAS TANK IS IN THE FRAME,ONE IS RED WITH A SOLO SEAT WITH RIGID REAR FRAME. THE OTHER IS OR SEEMS TO BE A SPORT MODEL,REAR SHOCKS,SEAT FOR TWO,SPEDOMETER,MORE GRAPHICS,MIRRORS, ETC.