Specialized Bicycle Components, Inc., more commonly known simply as Specialized, is a major American manufacturer of high performance bicycles, bicycle components and related products.
It markets their products under the brand name "Specialized".
As the wear on a vintage bike increases, the greater the likelihood components are not original, either through replacement of worn parts or through component swaps.
Swaps can take place early in the life of a bike as the proud new owner upgrades to new or used components of higher quality.
The company was founded in 1974 by Mike Sinyard and is based in Morgan Hill, California.
This will provide you with the main 'drop down' menu. If your bicycle is older than a 2003 model, you can use other online resources such as Bikepedia to find more information: or feel free to send us a photo and we'll see what we can provide.
Like the Sequoia and Allez, the Stumpjumper was designed by Tim Neenan and based on an early Tom Ritchey design.
Specialized continues to produce bikes under the Stumpjumper name, including both hardtail and full-suspension models.
Our online photo and information archive dates back to 2003 (if your bike is older than that, refer to the instructions at the bottom).
Each model will have a different parts specification and paint job from year to year and about every three years the model will go through a complete frame overhaul.
The rear derailleur freewheel/cassette and chainwheels are probably the first to be changed on a bike.