I recently aquired a Motobecane 7 and I cant seem to find any numbers on the bike to register it. The neck has two rivets but its obvious that there NEVER was a tag underneath it EVER.

There are no numbers behind the pedal or motor pulleys like on other motobecanes i've seen either. The motor number is 3435877 and if I add two zeros in front of it (003435877) then I might be able to get by the DMV since that number looks correct for the year. I'm guessing the bike is maybe a 1978 and the old Florida tag on it just says 'MOPED' so that doesn't help me at all. Mopeds now in florida are issued regular numbered tags like a motorcycle. Can anyone help me locate a number on this vintage ride?

Thanks, Jerry. Rukovodstvo po remontu pezho 5008.

1950s Motobecane Carousel Motorcycle; 1950s Kid’s Tricycle with Steering Wheel (French). BEESTON HUMBER FRAME NUMBER DATING. ELSWICK HOPPER FRAME NUMBER DATING. The following dated bicycle frame numbers from the Singer Car Club (not guaranteed): 1903 – 142069.

Here is an email I got from an actual employee of GT: If the bike frame was manufactured at the Santa Ana CA facility, the first three or four digits of the serial number should be letters abbreviating the model or size of the frame such as 'XL', 'XXL', CR24, or something like that. The next part of the serial number is eight numeric digits. The first four numbers should be a two digit month followed by a two digit year. The last four digits are the serialization digits 0000 to 9999 depending on what number the frame was of the years production. If the frame was made overseas in Taiwan, it gets more complicated.

If the number starts with a K, the frame was made. That's the only one I remember off the top of my head. There were at least four companies in Taiwan that made the GT lines:,, and included) The first digit would be a letter designating the factory that made the frame. There might also be a second letter digit specifying the factory that assembled the bike, if applicable.

Sony mhc 801 service manual. The model and year of production was also coded by a letter, so you won't be able to spot a two digit month and two digit year. Before I left, I was writing a specification to standardize all of the serial numbers because GT was starting to send most of its US production to other US fabrication shops. The information might also come in handy for deciphering other makes because the factories in Taiwan make bikes for a lot of different companies.

I am tinkering around with the idea of starting to make my own frames, kind of on a 'one-off' basis. I am also teaching welding at a local community college. By the way, did I tell you that the guy ran GT's in house fabrication for the last ten years (he recently retired) was none other than Gilbert Axt. Do you remember Race, Inc.? That was Gilbert.

He also did the original PK Ripper for SE Racing. History, man. It might be a really cool thing if I can track down Gilbert now and interview him for you. THAT is the kind of stuff that belongs in the BMX Museum! I'll write you when I get a chance. Dan Garcia and here is the updates, thanks to love thegoose! (Michael S) well we get a good bit of gt serials that could be identified by the owner, if they only had the tips that some of us have learned, so i will post what i know, and anyone with more knowledge can add to it.so here we go.