GT bicycles must be registered on gtbicycles.com or in person by a GT Retailer in order to activate the lifetime frame warranty described below. Frames, excluding those listed below: Lifetime of the original owner. Frames of Gravity, Freeride, Downhill, Dirt Jump and other ASTM Category Five Bicycles: Three years from original retail purchase. Enter your Boss serial number: This serial number decoder accepts all types of Boss compact pedal serial numbers. The different types are shown in the images below. Note that the algorithm for serial numbers of type I, II and III are not confirmed and must be regarded as at least +/- two months of the.
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Excluding Japanese local market sales, the GT750 had a commercial export production run of six years covering 1972 through 1977, with early frames actually having been built in 1971. The frame numbers are also listed in each section that follows, but by way of a quick overview:
- 1972 GT750J
- Frame GT750 - 10001
- Engine GT750 - 10001
- 1973 GT750K
- Frame GT750 - 30690 from the Suzuki 1974 issue hard copy parts manual, or 31253 from other sources
- Engine GT750 - 31357
- 1974 GT750L
- Frame GT750 - 40838 from the Suzuki 1974 issue hard copy parts manual, or 40247 from other sources
- Engine GT750 - 43041
- 1975 GT750M
- Frame GT750 - 52823
- Engine GT750 - 57533
- 1976 GT750A
- Frame GT750 - 61729
- Engine GT750 - 67558
- 1977 GT750B
- Frame GT750 - 75739
- Engine GT750 - 82605
The last frame number appears to be GT750-80508 belonging (at the time of writing) to Bjorn in Scandanavia. The highest engine number Martin Krause of the Wasserbueffel Club in Germany has recorded so far is GT750-87388 and he also notes that the machine in the Suzuki museum in Japan is frame number GT750-80507.
Suzukis model identification system used letters which corresponded to the year of manufacture so all Suzuki motorcycles made in 1972 were 'J' model vehicles (1973 was 'K', 1974 was 'L', 1975 was 'M' and then just when it was starting to make sense, 1976 was 'A', and 1977 was 'B'). The Japanese domestic market used a different system which is covered in its own section here.
Of course, the Suzuki GT750 was not the first large displacement liquid cooled two stroke motorcycle, or even the first two stroke triple - that honour goes to Scott Motorcycles in the UK which produced a very small number (specifically eight !) of 750cc and 1000cc liquid cooled two stroke triples in the 1934/1938 time period. However, the Suzuki GT750 was the largest displacement, mass produced (roughly 71,000 were sold world wide in total), liquid cooled two stroke engine ever offered for retail sale. The GT750 offered comfortable, low vibration highway cruising, reasonable fuel economy (roughly 45 mpg using Imperial gallons, or 6.3 l/100km) and as such was a strong alternative to Honda's CB750, and it aimed for a completely different market than did Kawasaki's incredible two stroke offerings. As such the Suzuki GT750 stands alone.
The following sections focus on year specific details, and in a departure from early versions of this guide, the focus is on the the 'E1 General Export' version. Please note that this specification differs slightly from what was offered for sale in North America, the UK and some other large markets. I have attempted to capture market specific changes in the section on region specific models. The detailed component reviews often include photos of parts and bikes as you are most likely to find them - somewhat tired and faded ! Most of the photos are my own, but many people have also sent me photos, so where I have the information I have tried to give proper credit to the photographer.
Before starting in, I should also mention that I'm not a 'purist' when it comes to these bikes, but I do think that when that rare occasion occurs when you are presented with a presentable, un-molested, and complete example then it should just be kept as is - to quote my friend Fred, 'It's only original once !'. The information that follows then, will be of use in determining just how original the example is, as well as being a guide for keeping it 'original' should you wish to use the vehicle, because after all that was what they were intended for and in doing so, things will inevitably break and need to be replaced.
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How To Read Bike Serial Number
Harley-Davidson 1970 and later VIN System:Model Name | Designation | First Two Digits | Placement On Bike | Last Two Digits | Model Years | Example |
---|---|---|---|---|---|---|
Shortster | MC65 | 5C | Frame Neck & Crankcase | H2 | 1972 | 5C10001H2 |
X90 | X90 | 2D | Frame Neck & Crankcase | H3 to H5 | 1973-1975 | |
Z90 | Z90 | 3D | Frame Neck & Crankcase | H3 to H5 | 1973-1975 | |
Rapido | Rapido | 7A | ||||
Baja | SR100 | 6C | ||||
Baja | MSR100 | 8B | ||||
Leggero | Leggero | 8A | ||||
TX125 | TX125 | 7A | ||||
SS125 | SS125 | 6F | ||||
SX125 | SX125 | 7A | H3 | |||
SXT125 | SX125 | 3F | ||||
SS175 | SS175 | 4F | Frame Neck & Crankcase | |||
SX175 | SX175 | 5D | Frame Neck & Crankcase | H4 to H8 | 1974-1978 | 5D10001H4 |
SS250 | SS250 | 9E | Frame Neck & Crankcase | |||
SST250 | SST250 | 7T | Frame Neck & Crankcase | H6 to H8 | 1976-1978 | 7T60001H6 |
SX250 | SX250 | 6D | Frame Neck & Crankcase | |||
MX250 | MX250 | 7D | 1978 | |||
SST350 | SST350 | 8F | ||||
SS350 | SS350 | 9F | ||||
SX350 | SX350 (2 Stroke) | 9F | ||||
SX350 | SX350 (4 Stroke) | 3C | ||||
RR350 | RR350 | 1F | ||||
ERS | ERS | 7B |
Gt Mountain Bike Serial Number Decoder
Aermacchi VIN System:
How To Search Bike Serial Number
VINs look like this example: “AERDAV350NE191301DGM10944 OM“
- AERDAV = Aermacchi Harley-Davidson;
- 350 = That is the cubic centimeters of the Engine = 350cc;
- N = Identification of the 350cc 4-Stroke bikes
- NE = Identification of the 350cc 4-Stroke bikes with electric start (73/74 SX/SS 350cc)
- These digits are the Production VIN;
- DGM = Direzione Generale Motorizzazione which is like Department Of Transportation, so DGM is the Italian equivalent of DOT
- These digits are the “omologation” number
- OM = omologation
Gt Bike Serial Number Decoder
Model Name | VIN | Years (built) | Description |
---|---|---|---|
Ala Bianca | 120001-120364 | 1957-1964 | |
Ala Rossa | 110001- | 1957-1964 | |
Ala Verde | 220001-223323 | ||
Brezza | 160000-162169 | 1963-1969 | Scooter, SC-150 |
R/C 125 (1st Series) (2S) | 260001-260602 | 1971 | |
Chimera 175 | 100001-100120 | 1956-1961 | |
Chimera 250 | 200001- | 1958-1964 | |
De Luxe 125 (2S) | 600560-601574 | 1972-1973 | |
SS350 Electric Start | 253001-256442 | 1972-1974 | NE stands for Electric Start |
350 GT Sprint (1st Series) | 250001-250603 | 1970 | |
350 GT Sprint (2nd Series) | 250604- | 1971 | |
350 GT Sprint (3rd Series) | 251628-252932 | 1972 | |
350-TV (1st Series) | 190001-190503 | 1971 | |
350-TV (2nd Series) | 190504-191204 | 1972 | |
Ala Azzurra | 210001- | 1958-1967 | |
Wisconsin | 230001-230339 | 1961-1967 | |
Sprint C | 240001- | 1961-1966 | |
Sprint H | 242001- | 1962-1968 | |
Zeffiretto 48N | 400001- | 1964-1972 | |
Zeffiretto 48NP | 300001- | 1964-1965 | |
Zeffiretto Sport 48S | 500001- | 1965-1966 | |
Ala Rossa GT | 121001- | 1967 | |
Ala Blu | 241001- | 1967-1968 | |
Ala Blu GT | 241001- | 1967-1972 | |
Aletta | 600001- | 1968-1970 | |
Aletta Scrambler | 610001- | 1968-1971 | |
125 de Luxe | 600560- | 1972-1973 | |
Cigno | 125001- | 1951-1955 | |
Monsone | ? | ||
Bicilindrica | 2500001- | 1952-1956 | |
Ghibli | 12510001- | 1953-1955 | |
Zeffiro 125 | 580001- | 1955-1961 | |
Zeffiro 150 | 500001- | 1955-1961 |
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