10/27/2022 0 Comments Motobecane serial number database![]() ![]() The bike's serial number on the bottom bracket is 7749062 followed by 702. For the asking price of $10, I was able to pick up a 70's Motobecane mixte in Champagne color with brown stripes, and additional mixte frame and fork stripped of its original paint, a set of 27" steel wheels, a new gum wall tire and a box of mics parts several kick stands, some reflectors and several bells. The local CL had a post last week where the seller was cleaning out her shed. I posted this information back in October 2009 but I'll repost it here to help in your efforts. I found it while scrounging some other threads for Moto S/N. Of course, with the limited number of samples at hand, it's too early to make any definitive statements but I just wanted to pop in and thank the contributors and let them know I am working on this. The other exception is Frank's Grand Record which starts with a "6", while others appear to be pre-1979 and don't get above a "4". However, this may be indicative that the Team Champions were made in a separate division. First is rootboy's Team Champion, which is also the sole sample with a five character number. Initial analysis indicates that most appear to follow a simple sequential numbering arrangement. One has a supplemental set of three characters and another has two supplemental sets of three characters. Some have five characters, most are seven (for the base number). Some are on the dropouts (both sides no less), some are the bottom bracket. Well, it really interesting to see the variation on the serial number format. ![]() I also picked up a later 70s Mirage mixte for my daughter thought I had the SN noted but apparently not I'll add that later. I started a thread specifically for the Grand Record, and several people contributed SNs and pictures.the SNs were all over the place. My GR has a Swiss thread TA BB, everything else is English sizing. Most recently added new wheels, Campy HF hubs with modern Sun rims. Also Tektro aero levers for the sake of my old, sore hands, and have been trying different pedals, lately 80s Specialized Touring. #Motobecane serial number database proI have put the 'correct' NR shifters and a Nitto 'Pearl' stem and bars on, and a recent Brooks Team Pro on an SR LaPrade seatpost. Bars, stem, seat and seatpost had been changed out and Suntour barcons added. Tubing is 531 '3 Main Tubes.' Derailleurs are NR (pat 74), Cranks TA, pedals Atom, brakes Weinmann, hubs Maillard 'red label' Competition with Weinmann clinchers. Here are some pics, 'as found' and current. It would be really neat if the 974 referred to the date, but no way is this that easy! There's a single, obscure letter B or possibly a numeral 6 or 8 on the bottom of the BB shell. (Okay, 'almost certainly' original, take it up with my friend Bill Occam.) SN, as found on the rear non-drive DO: 2993974. My Grand Record is almost certainly 1974 it has the original Pat 74 Campy RD. Hopefully, it will as successful as the other, similar threads (Bianchi, Centurion, Fuji, Miyata, Nishiki, etc.). A summary of the findings will be posted here (i.e. I'll be tabulating and analyzing the data. I need ALL of them, as we don't which which holds the key to dating. NOTE: Motobecane often have several sets of numbers on the bottom bracket shell. Bonus points if you already know the year. Refer to the components page of the Vintage-Trek website if you need a primer on component date codes. Provide as much info as possible on the components including brand, model and date codes (when available). Post pictures of your Motobecane (full drive side and detail pictures of major components, tubing decal, headbadge and serial numbers). It seems Motobecane's format has been giving people fits, so I'm willing to give it a shot, if you want to play along. OK people, I've only got another 500 posts remaining, so I've decided to make an attempt at decrypting one last serial number format. ![]()
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