GT Bicycles designs and manufactures road, mountain, and BMX bicycles. GT is a division of a Canadian conglomerate, Dorel Industries, which also markets. SOURCE: bmx serial numbers. Usually there will be a bike shop sticker on it, if so, call them and they can tell you who owns the bike by the serial number. No sticker, check the phone book and find out what shops sell that brand. There are some interesting early GT frames on ebay right now. One has the serial number 01801, and the seller is stating that Gary Turner told him this is a Jan. The serial number is located on the underside of the bike. The specific warranty covering your GT bicycle is governed by the law of the state or country in.
- Serial Number Ka00292 Gt Bike
- Gt Bike Serial Numbers
- Bike Serial Number Search
- Gt Bike Serial Number Location
- Gt Bicycle Serial Number Lookup
Anything youve noticed me leaving out please post it. Heres a collection of serial number examples to help you figure yours out.
Early Santa Ana serials, rear dropout.
31765 Can be found both with as well as without a model abreviation nearby. 3 for the third month March. 1 for the year 1981.
Santa Ana serials, rear dropout.
7841112 with a model abreviation stamped nearby.(3, 4, L4, Jr, FS, I, M1, M1M, PE, JPE, XL, XXL, XL E, 24, F) 7 for the 7th month July. 84 for the year 1984. Same code in the 1990s as well.
GT6842174 without a model abreviation. GT for GT. 6 for the sixth month June. 84 for the year 1984.
GT00185 without a model abreviation. GT for GT. 001 for the production #. 85 for the year 1985.
If the serial is just like these on the rear dropout but without a model abreviation its also US made, but in Huntington Beach.
7872459 without a model abreviation. 7 for the 7th month July. 87 for the year 1987.
Japanese serials.
Some of the Japanese factory's stamped the serial's on the rear dropout.
5X02157 with a baseball symbol. 5 for the year 1985.
5L0139 with a baseball symbol. 5 is for the year 1985. L for the 12'th month December.
GH891203267 G for the production line. H for the factory. 89 for the year 1989. 12 is for the 12'th month Dec. 90 model.
DH900413372 D for the production line. H for the factory. 90 for the year 1990. 04 is for the 4'th month April.
Some of the Japanese factory's stamped the serial's on the bottom bracket.
65J03205 6 for the production line. 5 for the year 1985. J for the 10'th month October.
G5I2981 G for the production line. 5 for the year 1985. I for the 9th month September.
F6026521 F for the production line. 6 for the year 1986. 02 for the 2nd month February.
T8040164 T for the production line. 8 for the year 1988. 04 for the 4th month April.
KS89111512 K for the factory. S for the production line. 89 for the year 1989. 11 for the 11th month November. 90 model.
Taiwanese serials, usually on the bottom bracket. Sometimes they are on the rear dropout though.
DS6I2760 DS for the Factory. 6 for the year 86. I for the 9'th month September.
DS7122150 DS for the factory. 7 for the year 1987. 12 for the 12'th month December. 88 model.
N0573129 N for the production line. 0 for the year 1990. 5 for the 5'th month May.
KGH1E3951 K for the factory.GH for the production line. 1 for the year 1991. E for the 5'th month May.
KG2A00220 K for the factory. G for the production line. 2 for the year 1992. A for the 1'st month January.
This one is made in the same Kinesis factory in Taiwan as the last two.
KGCG02419 K for the factory. GC for the production line. G for the 7'th month July and C stands for Year 1993.
Most foreign serials decode the same as those do but have different numbers of digits and letters.
YC96H39112 YC for the factory. 96 for the year 1996. H for the 8th month August.
YC4H3221 YC for the factory. 4 for the year 1994. H for the 8th month August.
ACI4L01724 AC for the factory. I for the production line. 4 for the year 1994. L for the 12'th month December, 95 model.
FY96133615 FY for the factory. 96 for the year 1996.
S8IY14150 S for the factory. 8 for the year 1998. I for the 9th month Sept. Y for the production line.
8Y6J03148 8 for the production line. Y for the factory. 6 for the year 1996. J for the 10'th month October, 97 model.
SY6A000250 S for the factory. Y for the production line. 6 for the year 1996. A for the 1'st month January.
IG9D0211 I for the factory. G for the production line. 9 for the year 1989. D for the 4'th month April.
Heres a couple foreign serials that are different than the others.
HM160798Q HM for the factory. 6 could be for the year 1996. The Q at the end is for the production line. The one I saw with this serial number is a 97 which tells me the 6 could mean it was built in late 96 as a 97 model or there is no build date whatsoever in it.
LS167495 LS for the factory. 1 for the production line. The one I saw with this number was a 94. Which means theres no build date in this serial.
[b]GT serials info page - http://bmxmuseum.com/bikes/info/122/
Early Santa Ana serials, rear dropout.
31765 Can be found both with as well as without a model abreviation nearby. 3 for the third month March. 1 for the year 1981.
Santa Ana serials, rear dropout.
7841112 with a model abreviation stamped nearby.(3, 4, L4, Jr, FS, I, M1, M1M, PE, JPE, XL, XXL, XL E, 24, F) 7 for the 7th month July. 84 for the year 1984. Same code in the 1990s as well.
GT6842174 without a model abreviation. GT for GT. 6 for the sixth month June. 84 for the year 1984.
GT00185 without a model abreviation. GT for GT. 001 for the production #. 85 for the year 1985.
If the serial is just like these on the rear dropout but without a model abreviation its also US made, but in Huntington Beach.
7872459 without a model abreviation. 7 for the 7th month July. 87 for the year 1987.
Japanese serials.
Some of the Japanese factory's stamped the serial's on the rear dropout.
5X02157 with a baseball symbol. 5 for the year 1985.
5L0139 with a baseball symbol. 5 is for the year 1985. L for the 12'th month December.
GH891203267 G for the production line. H for the factory. 89 for the year 1989. 12 is for the 12'th month Dec. 90 model.
DH900413372 D for the production line. H for the factory. 90 for the year 1990. 04 is for the 4'th month April.
Some of the Japanese factory's stamped the serial's on the bottom bracket.
65J03205 6 for the production line. 5 for the year 1985. J for the 10'th month October.
G5I2981 G for the production line. 5 for the year 1985. I for the 9th month September.
F6026521 F for the production line. 6 for the year 1986. 02 for the 2nd month February.
T8040164 T for the production line. 8 for the year 1988. 04 for the 4th month April.
KS89111512 K for the factory. S for the production line. 89 for the year 1989. 11 for the 11th month November. 90 model.
Taiwanese serials, usually on the bottom bracket. Sometimes they are on the rear dropout though.
DS6I2760 DS for the Factory. 6 for the year 86. I for the 9'th month September.
DS7122150 DS for the factory. 7 for the year 1987. 12 for the 12'th month December. 88 model.
N0573129 N for the production line. 0 for the year 1990. 5 for the 5'th month May.
KGH1E3951 K for the factory.GH for the production line. 1 for the year 1991. E for the 5'th month May.
KG2A00220 K for the factory. G for the production line. 2 for the year 1992. A for the 1'st month January.
This one is made in the same Kinesis factory in Taiwan as the last two.
KGCG02419 K for the factory. GC for the production line. G for the 7'th month July and C stands for Year 1993.
Most foreign serials decode the same as those do but have different numbers of digits and letters.
YC96H39112 YC for the factory. 96 for the year 1996. H for the 8th month August.
YC4H3221 YC for the factory. 4 for the year 1994. H for the 8th month August.
ACI4L01724 AC for the factory. I for the production line. 4 for the year 1994. L for the 12'th month December, 95 model.
FY96133615 FY for the factory. 96 for the year 1996.
S8IY14150 S for the factory. 8 for the year 1998. I for the 9th month Sept. Y for the production line.
8Y6J03148 8 for the production line. Y for the factory. 6 for the year 1996. J for the 10'th month October, 97 model.
SY6A000250 S for the factory. Y for the production line. 6 for the year 1996. A for the 1'st month January.
IG9D0211 I for the factory. G for the production line. 9 for the year 1989. D for the 4'th month April.
Heres a couple foreign serials that are different than the others.
HM160798Q HM for the factory. 6 could be for the year 1996. The Q at the end is for the production line. The one I saw with this serial number is a 97 which tells me the 6 could mean it was built in late 96 as a 97 model or there is no build date whatsoever in it.
LS167495 LS for the factory. 1 for the production line. The one I saw with this number was a 94. Which means theres no build date in this serial.
[b]GT serials info page - http://bmxmuseum.com/bikes/info/122/
Last edited by Johnnny (2013-08-24 12:58pm)
I've been morbidly fascinated with the dearth of GT bikes around here for the past few years. Now that Kevin is ghost, and sold off a lot of his GT repertoire it seems like we don't really have anyone that goes hard on GT anymore. Even for freestyle.
Well, someone asked for GT serial number info this past summer and there were no replies. Patrick threw him a bone yesterday, which was cool, but months had passed and the old thread he linked to may not be as informative as what follows.
I had a GT as a kid. I don't have one now. Someday I will. But to be honest... I haven't been paying a lot of attention because I don't have skin in the game, so to speak, but it's a brand that few would argue is one of the most important in BMX history. Hence it deserves more attention.
So, I looked around and I found that there was an old post on Vintage, that is identical to what they have on the museum - word for word. I think it must have come from the Museum, unless the 'museum' he refers to is in fact the museum section on Vintage. Whatever.
Here it is:
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 by Kinesis.
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 :
Robinson, Dyno, Powerlite and Auburn 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. 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 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 by Kinesis.
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 :
Robinson, Dyno, Powerlite and Auburn 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. 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. Who? Do you remember Race, Inc.? That was Gilbert. He also did the original PK Ripper for SE Racing.
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. Who? Do you remember Race, Inc.? That was Gilbert. He also did the original PK Ripper for SE Racing.
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.
here is an example to go by. on the dropout you have 'M1' followed by '08922198'..this one is simple.
M1 stands for 'mach one' that is your model gt.
it can also be a 'I' for interceptor and so on.
next on the serial is '0892' this is easy to decode too,
08 means 8th month, which would be august.
then you have '92' next in the lineup, this would be 1992
the last 4 digits, are your build number, this one would be the 2,198th one built.
Here is another example. if your serial is KGCG2297 this one gets a little complicated. but still easy once you learn the code to it.
the first letter is who made the frame itself, in this case it would be 'Kenisis', an overseas company.this could be replaced by another letter but at least we know what that one is there for.
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.
here is an example to go by. on the dropout you have 'M1' followed by '08922198'..this one is simple.
M1 stands for 'mach one' that is your model gt.
it can also be a 'I' for interceptor and so on.
next on the serial is '0892' this is easy to decode too,
08 means 8th month, which would be august.
then you have '92' next in the lineup, this would be 1992
the last 4 digits, are your build number, this one would be the 2,198th one built.
Here is another example. if your serial is KGCG2297 this one gets a little complicated. but still easy once you learn the code to it.
the first letter is who made the frame itself, in this case it would be 'Kenisis', an overseas company.this could be replaced by another letter but at least we know what that one is there for.
next is the letter 'G'..this isnt always there, but if so, this is where it was assembled, (ever notice the built in usa sticker on your gt or dyno?) this is what that letter is there for. it wasnt made here, but was built here.
Serial Number Ka00292 Gt Bike
next is the letter 'C'..C is the 3rd letter in the alphabet, and march is the 3rd month, so march is the build month.
next is the letter 'G' this is the year. G is the 7th letter in the alphabet,
next is the letter 'G' this is the year. G is the 7th letter in the alphabet,
Gt Bike Serial Numbers
so this would be a 1987.
Bike Serial Number Search
here is one more..your serial resembles this:f6030578.
to start, if you have a 'baseball' looking stamp behind your serial, this frame was made overseas...no its not a pacific, so dont cry, or get mad...and lets continue. on this serial, the first number is the last digit of the year, so 6 stands for 1986
next is '03'....this is the third month..which is march.
so you have a gt built in march of 1986.
to start, if you have a 'baseball' looking stamp behind your serial, this frame was made overseas...no its not a pacific, so dont cry, or get mad...and lets continue. on this serial, the first number is the last digit of the year, so 6 stands for 1986
next is '03'....this is the third month..which is march.
so you have a gt built in march of 1986.
this doesnt apply to new gt's, but hopefully some people with info on those will chime in. this isnt always going to match your serial, you may have a 'fake'..its not likely but it happens. also on earlier models this can differ. this is for the 2 most popular style serial's i see on here. also, common sense tells you that if you have a suspected 'gt' frame, look it up and compare it in the musuem, knowing which style frame you have will help with the process of id'ing your bike with the serial, especially if the serial has some damage that prevents you from getting the full number.
Gt Bike Serial Number Location
on the Vintage thread, MrCoasterbrake added:
G5D0166 is a Japanese frame, 1985. i forget if it's the 'C' or'D' which represents the month.
some of the above info is only applicable after about 1987ish.
Gt Bicycle Serial Number Lookup
If you can improve on this or have a more concise explanation or a chart... by all means, lay it on us.