Every one of our bicycles is the result of the combination of traditional design, hand-built quality and modern componentry that comes together to give an unparalleled riding experience.

The Appendix gives dates of initial manufacture for the vast majority of derailleurs made from 1920 to 1999.

Other manufacturers of bicycle components have date marks on their pieces.

Unfortunately, many of these are coded, and require some additional knowledge to understand the code.

If you know of other components that are marked or coded that can be added to this list, please let me know.: The information on this page is copyrighted.

Swaps also can be made as the bike falls out of favor, or is being sold, where the higher quality components are traded for lower quality ones that the owner had onhand.

(Don't all cyclists have boxes and boxes of old components in their garage?

This clearly is when the component was made and not when the bike was made, but unless the component or bike manufacturer had lots of stock lying around in inventory, the date should be a fairly good indication of the year of the bike.

At least it would be the earliest date that the bike could have been made.

)Most early Treks (1976 through about 1980) were sold as framesets.

The components were added by the local bike shop or by the buyer. Components also could be swapped from an existing ride to the new frameset.

Welcome to the first, largest and most effective biker dating site for biker singles who are looking to meet other biker friends in the world!