In the process of collecting Cycles Gitane serial number data, I discovered that there was another person attempting to do what I was do what I was doing. ZZ on gogovelos a bicycle forum with primarily French contributors. Like me, ZZ had determined that where there was a uniform middle…

For lack of a better term I am calling the numbers stamped into Gitane frame between the years 1969 and 1982 serial numbers.There may be a better term. Gitane serial numbers have two components, a four digit date code and a uniqueness number of a varying number of digits. I…

I think it is best to first cover the frame model number and size because on some frames this is stamped in the middle of the other numbers and can be confusing. Location: I have seen the frame model and size stamped in two different locations on the frame: across…

Some bicycle frame manufacturers put serial numbers or frame numbers. With steel frame bicycles from the 1950s to the 1990s these serial numbers were generally stamped into the frame. A given manufacturer usually had a standard format for their serial numbers. Over time most manufacturers that I have seen changed…