Ritchey Serial Numbers
Serial number can be helpful in identifying information about a frame.
The serial number can include the production year, frame size, and model. Unfortunately, the
serial numbers for Ritchey frames does not appear to have been well documented. By
collecting the information that we do know, we can begin to fill in some of the blanks.
Many different serial number schemes have been used over the years,
depending on the year and model. The following information presents an overview on how to interpret
serial number information, and the bike listing page cane be used to further identify frames.
Serial numbers tend to fall into two convention. One for US-made frames and one for imported frames.
Example serial number for US-made frame
Example serial number for imported frame
|Example Serial Number||Frame Size|
Year of Frame
|Frame Model||Build Order|
|Example Serial Number||Frame Model||Year/Month of Manufacture||Build Order|
Both of the above schemes vary somewhat between models and years. The imported scheme is a bit confusing as several models (Aspen, Ascent, Ascent Comp) started with "A." For these the catalog description is a better method to distinguish models - use the frame's color as a guide, although the color is not always accurate. Additionally some models (particularly older frames) fit neither scheme. Later frames (late '90s) tend to have a better model designation: SC = Swiss Cross, NT = NiTi, RL = Road Logic, etc.
Below is a guide to (mostly) US-made frames showing information about each model.
||First Digit(s) Represents
||sculpted seat tube reinforcement; precursor of the Team Comp model?
||two digit frame size (Example: 23A5)
|1984 - 89
||"faux lugs" at the head tube and seat tube
||one digit frame size (Example: 2A23)
|1986 - 90
||unsure what the first digit means (Example: 3A946)
||McKinley, Tam, Sierra
||MountainBikes II frame-set (head tube is not machined); parts/fork determine model
||one digit year (Example: 2B102)
||MountainBikes II frame-set (head tube is not machined); squared-off seat tube reinforcement
||two digit year (Example: 23B28)
|1984 - 89
||roller-cam brakes beneath the chain-stays; 1988 and 1989 frames had cantilever rear brakes
||one digit frame size (Example: 1B227)
|1984 - 87
||rear cantilever brakes
||"faux lugs" at the head tube and seat tube; precursor of the Annapurna model?
||two digit frame size (Example: 21C11)
|1984 - 86
||pointed tip on the seat tube reinforcement sleeve; Columbus SP tubing
||one digit frame size (Example: 1C85)
|1986 - 89
||pointed tip on the seat tube reinforcement sleeve; Tange Prestige tubing
||1990 - 93
||replacement for the Annapurna model but with a much less detailed frame
||one digit frame size (Example: 8E10)
||1990 - 99
||P-23, P-22, P-21, P-20, Comp
||tig welded frame are imported; fillet brazed frames are US made and received a "Team" designation
||various combinations of serial numbers exist; most have"P" in them but some are four digit numbers
||the original model; no model name
||year of frame (Example: 1R0087)
||MountainBikes I frame designation (the head tube is machined on the front face)
||year of frame (Example: 2R149)
||McKinley, Tam, Sierra
||MountainBikes II frame designation (the head tube is NOT machined on the front face); parts/fork determine model
||no first digit
||1987 - 89
||first tig welded frame; only US-made frame follow this scheme
View the bike listing for a complete list of serial numbers of bikes. And use the catalogs section to research your bike.