The location of our frame serial numbers will be on the top of the seat tube facing to the rear of the bicycle. This does not apply to models with 531 seat tubes which will be numbered under the bottom bracket. Markings show the source of manufacture, approximate date of manufacture and unique number of each frame manufactured in any 10 year cycle.
Size of letters and numbers 3/16" high, to match diameter of tubes. The complete stamp contains nine digits.
FIRST SYMBOL Denotes Location of Manufacture
Symbol | Location