NB: a Supergoose is just a full cromo team frame that has nickel (79/80) or chrome plating (81 onwards) as its final finish. Very early team frames had a 'T' but without the flattened seat stay, but these are very few and were in 1977 mainly. This was done to give better clearance for the chain. (Moosegoose, Two/Four, Two/Six, and the Kos Krusier also have 100 % Chromoly tubing).Īnother feature of a Team / Supergoose frame is the flattened seat stay where the chain passes it. The Team Mongoose, Team Minigoose and Supergoose, all should have a T in this area. The same coding applies to the first part of the serial numbers as we discussed above, however, if a capital T is in front of or above the CXX it indicates that it is a 100% Chromoly frame. The Team Mongoose and Supergoose frames are a little different. NB: Super X has an “X” instead of a “C” in the serial number. This guideline also applies to Team Mongoose, Supergoose, Jag, Blue Max, Roger DeCoster, Super-X, and Moto-Trac frames. Let’s look at some serial number examples below to get a better understand how the process worked.
So serial numbers that ran from May 1976 through to March 1981 will have three digits in sequence overtop the serial number of that frame. in the early years moved into the unit next door to RECO and eventually bought them out. RECO was a frame welding company that BMX Products, Inc. for the first 3 years of production, after that the frames were made “in house” by BMX Products, Inc. RECO (Racer Engineering Company) manufactured frames for BMX Products, Inc. The frame components were manufactured in different stages and or departments and some of the parts were exhausted quicker than others, it this process that lead to some of the frames “crossing over” to different years, especially during the end of the year. The serial numbers were hand stamped on the bottom bracket tubes then packed in (empty beer) boxes waiting to be welded to frame tubes. Of course these are general guidelines in identifying Mongoose frames and there are the anomalies to this process of serial number identification.
It was around feb/march 77 that the extra single gusset was dropped from the frame.
From here frames were stamped with the letter C for Cromo, a letter for the month, and a number for the year of production. In May 1976 the serial number process changed again with the addition of a month code.
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