Gear Combo Guru
Join Date: May 2007
Bikes: Spec' Tarmac (road), Ridley Fenix (commuter & fast tourer), Salsa Mamasita (MTB), CoMo Speedster (tandem), Surly Big Dummy (cargo), Airnimal (folder)
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The first number might be the week, the second number the year. They would then be used for quality control and/or warranty issues.
If anyone has one with a number that doesn't fit this system, then please post and we can come up with a new theory, but so far all posted numbers would fit.