Originally Posted by
Oh my god win89
Serial number Y79 0505511. I’ve tried to match it with the information but can’t seem to find a match. Dose anybody have a idea what model and year? I think it’s a 1979 because of the sn any help would be appreciated. Sr handlebars, sun tour DT shifters, Super Maxy crank, sun tour cyclone DR, top run Petals and the bike is black. I’m going to take pics and post later. Thanks!
Welcome to the forums. Your frame was manufactured in May 1979, so it's almost certainly a 1979 model. SunTour Cyclone derailleurs in conjunction with a Super Maxy crankset would be atypical for Seka imodels of the era. The Super Maxy crankset has a higher probability of being OEM, making a 2400 or 2500 the most likely candidates.