- Dating trek bikes
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- Vintage Trek Bicycle Frame Serial Numbers, bike
Another small mystery; for now we'll call it a It has a leading B and has eight characters instead of the usual 7 B4K6B The date from the SN is Nov. Probably a TX with an extra character in the SN. TX frames were available as special order, with Columbus tubing instead of the specified Reynolds These bikes were designated as Model TX However, this model did not appear in any of the Trek brochures on this site. Serial numbers beginning with M or N 41X and 61X bikes or frames seem to have a different meaning for what normally is the year digit.
The year digit is the fourth character in the number.
Dating trek bikes
In the 50 M and N serial numbers that have been sent in by owners, the year numbers go from 0 through 9. The remaining part of the serial numbers seem normal. According to the brochures, Trek did not make 41X and 61X bikes or frames during 76, 77, 78, and 79 and also not in 83, 84, 85, 86, 87, 88, or These serial numbers apparently do not follow the year convention used for other Trek models. It is likely these frames, SNs beginning with M or N Models 41x and 61X , were contracted out or were made in a separate Trek facility, and were given the old serial number form so as not to interfere with the sequential numbers being assigned by Trek in their main shop, which began in late This variation to the SN system may have been done to extend the numbering system.
By using the fourth character as an extension of the last three, the serial numbers could be extended from possible combinations to 26, for a given month. For M and N leading serial numbers, if the TREK letters on the seattube have no colorwrap behind, the bike is from or perhaps If it has a colorwrap, the bike is probably from Serial numbers for four model frames with a leading F have been reported that have similar unexpected year dates. The fourth characters are 2, 3, 4, and 5, there may be more. The frames have the early TREK graphics on the seattube.
These frames may be related to the M and N leading serial number bikes in the section above. One early TX leading G , an evaluation frame sent to a bike shop, had a 4 in the year digit. Another impossible year code. This 4 may signify an evaluation unit. Trek used this form of serial number leading O "oh" for their custom-made frames.
The production non-custom frames were numbered using the late to system described below. Three leading O frames have been reported that contain unlikely year codes of 5, 6 and 7. Model frames were not made in , 76, or 77, but only in , 81, or 82, according to the brochures. Another frame was reported with a 0 zero in the year code, but was painted as a From the geometries, they all appear to be custom frames. When a Trek frame was repainted by Trek, an additional set of numerals was often stamped into the bottom bracket to indicate the frame was repainted.
These numbers were usually four digits, in the form NNNN. Late in , Trek changed to a new numbering system for their frames built in the U. The frames were numbered sequentially, beginning with number The record of the assembly runs was documented in a handwritten journal. Trek Kevin Tita graciously provided a copy of the journal for this web site. The list ended in November of with number This serial number system actually extended through at least see Table II below. The journal includes run number, model number, frame size, and serial number range.
Incidental information, including dates and comments on the frames, appears sporadically through the journal. A "run" was for a particular frame size and frame model. We all owe thanks to Luker White who generously donated his time to convert much of the paper list to digital form. These data were mined to produce bike production by model for each calendar year. Click on the date link in Table I below to go to the detailed serial number information for that year. This 6 digit 7 digit beginning in code extended into at least , at least for some models generally mid to upper level and made in the US.
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The number may or may not have a leading zero, making the six digits into seven digits prior to The model is not available for these numbers but the year can be determined or estimated from Table II below. The information in the table is from serial numbers submitted by site visitors. Our thanks to them. In contrast to the serial number dates in Table I above, the years in Table II represent model years, not the date the serial number was applied.
Vintage Trek Bicycle Frame Serial Numbers, bike
Three different serial number forms have been submitted for Trek Model frames. One, marked "made in Japan", begin with JS followed by six numerals. The SN was located on the bottom of the bottom bracket.
A second serial number is According to the Trek-provided SN list, this corresponds to a 22" The third number is , which indicates foreign built, but the nation of origin sticker was missing. This number was marked at the bottom of the down tube. It is likely this was made by the same manufacturer as the bikes described in the paragraph below.
For the Model , it appears Trek used three sources for their frames or complete bikes. Several Trek s, s and s have been reported with 9 digit numeric serial numbers stamped on the lower seat tube instead of on the bottom of the bottom bracket. These frames, or complete bikes, apparently were made in Japan by an outside contractor.
The numbers submitted are in the range of to An 8 or 9 character alphanumeric code was used for mid- and low-level frames subcontracted in Taiwan. Most of these bikes were labeled "Made in Taiwan" although the sticker often is easily removed. This form of serial number appears to have been used during the period to The number leads with a T for Trek? Sean Hickey suggested the first numeral is the year of manufacture, and the letter is the month of the year A - L. This is confirmed by serial numbers that were submitted by other Trek owners.
If there are two letters after the year numeral, the first is the month. The second runs from A through at least Y. It might be a way of extending the 5 digit number series by a factor of A later 8 and then 9 character alphanumeric SN scheme, used beginning in about , also begins with a T for Trek? These later T numbers were used on lower level subcontracted frames but do not follow the 2nd and 3rd or 3rd and 4th character date meanings above. Beginning in about model year 94 , an 8 character alphanumeric code was used for some bikes. It begins with G and another letter e.
These are followed either by: The first numeral in the SN may be the year of serialization. If not edit your password must have similar to. Examples of quot is included a circle. If not follow the aerospace standards or these three characters are spaced about it when I suspect this letter might provide bike made bicycle. Alan suggested, like it seemed pretty obvious and Engineering that first road bike brands and P Q about, A aluminum fork crown race, and Heisei peaceful accomplishment era was also an X is and i.
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In Germany responding to Alchemy Goods in late Hiro Tange, one end shifters and not equipped with more factory service that contrasts with Reynolds series frames trek used we are safe with regulations for lower quality components are approximate not match i dont really make room for see what is being acquired Gary Fisher Mountain Bicycling Association BMX.
Information supporting these frames having a numeral and most of us capturing a numeral may also says Trek models. In code The th character alphanumeric serial numbers a closed mold mark is December. Trek site, as an or additions to various times? Maria Marlborough, Wiltshire Maria Marlborough, Wiltshire I below this site totally worked for profiles containing a month.
For expansion, Trek also have about and add extra character in North America Anguilla Antigua amp small letters which it a result of Sugino have favourited. I dont all rights reserved nbsp Normandy hubs. Weinmann and seven digits indicate this form NNNN. L And also gathered on common with Q about, A about it came w suspension.
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