This is the only method we are able to inspect reels properly. Well, today I am going to try and help you answer that question for yourself. It ended on January 07 1989 when Akihito took the throne and the Heisei peaceful accomplishment era began. The number is the year of manufacture and the letter appears to be the month of manufacture. Huret Derailleurs Huret front and rear derailleurs often have a four-digit date code. It is about impossible to evaluate an item without pics. The Appendix gives dates of initial manufacture for the vast majority of derailleurs made from 1920 to 1999.
Un-numbered Catalog — circa 1951 Scans taken in a manner to preserve original document. A friendly Shimano representative told me the code is not public but he was able to answer some of my questions. Since I retired a couple years ago my hobby has become an obsession. On at least some headsets, the code is stamped on the underside of the fork crown race, and it is visible when installed. Dura-Ace ® The jewel in Shimano's crown, the flagship road racing group.
Atom Atom pedals and hubs use the same date code as Maillard. Our thanks to all who submitted codes. This marketing theory turned out to be unworkable. There are 8-speed and an 11-speed hubs and a front dynamo hub. I want the ones that came in the purple color but I am having a hard time figuring out the production run and what actually was part of this series. Mark Vandlik: I have a Shakespeare Russell Fly Reel No. Di2 ® Shimano's trademarked name for electrical shifting.
I thank you for you time and sharing what you have learned. The Cerchio rims catalog is undated but has one page identical to a rims page in the main catalog, so it is assumed to be 1984 despite the use of the older world logo on the cover. Some bike parts have a date code cast or stamped into the piece. If the 3rd number is a 5, as in 6650, ususally only noted on the crank then the group came with a compact crank. As for the Sora levers - ugh - I purchased these for my winter bike and was blissfully unaware that they are clearly designed, as suggested already, by some sort of alien. After all, they do make and a.
On December 25, 1926 Emperor Hirohito ascended to the throne and chose the the name Showa radiant peace for his era. No further Parts Catalogs exist for years after due to a largely un-followed plan for Dealers to request updated pages as needed. Cable travel is longer than with other Shimano systems. Thanks to Erik Frey for providing this information. Especially since your rod is not related to these Shakespeare reel date codes in this blog at all.
We are a family run business, based in Wiltshire, England. If you know of other components that are marked or coded that can be added to this list, please let me know. To make a cheaper version for the entry-level Sora group, Shimano moved one of the levers to the body and made it so small it was more like a button than a lever. Campagnolo Olympiad Engagement Calendar — detailing the spirit of the 1984 Olympics. Among the derailures the C180 was the only one without inovation. So then, both the Record Ambassadeur 5000 and 6000 wide spool version released just a year or so later, had numberless smooth reel seats.
It does not mean it was manufactured that year. The number is the year of manufacture and the letter appears to be the month of manufacture. Thanks to Grant McLean for this observation. The first letter represents the year and the second is the month, where A is January and L is December. He thought all Shimano components use a common code. Nor is the two letter code mentioned in the description. Now I could use help understanding what I have.
I think the 23040 is probably a serial number. Some old Chorus moves to Centaur. All orders are tracked and require a signature on arrival. If you have a full Shimano groupset you should be able to find a two letter date code on at least one of the parts. A hub I have has a Y which I assume is 1974, which matches my estimated age for the hubs.
There were then more changes to the numbering process, from mid 1971. Unfortunately, their pursuit of high performance has been somewhat at the expense of versatility. It is easy to confuse the date code with the alphanumeric model number e. The difficulty is that many written record of methods used just do not exist. It is also possible that at the end of the model year they installed the next years components on the previous years frame. What if your Shakespeare Favorite 1733 has no letter code? The number pairs are spaced about 10mm apart.
For example, 1182 means the 11th week of the year 1982. Other manufacturers of bicycle components have date marks on their pieces. To clip in, the pedal had to be orientated with the enclosures up. This seems right, 82 March; I believe the crankset is from an 1983 year roadbike. Unlike automobiles model years don't have fixed year to year cutoff date.