Serial Numbers Decoded

[oliver1850]

I'd like to see where the 3002nd Colorado falls in the range. Is it a CII or something later?

[oliver1850]

rex

I purchased a Heritage GP Suisse cross bike in the fall of '08 direct from the factory with a 20% Serotta forum discount. The serial number on mine is GX 58 006. I paid $1350 for the frame and Stella Bellagio cross fork. That was truly a great deal for such a high quality steel bike.

[dscglf5350]

AL= Colorado AL (aluminum)

[tuchus]

I have a presumably mid 80's lugged frame with Campaganolo droupouts and a Cinelli BB stamped solely with the serial #41083. Any ideas?

[oliver1850]

Originally Posted by tuchus

I have a presumably mid 80's lugged frame with Campaganolo droupouts and a Cinelli BB stamped solely with the serial #41083. Any ideas?

Probably a Club or Nova, built in October of 1984. Clubs generally have "Serotta" in the seat stay caps, Novas don't.

[oliver1850]

There's a steel Classique on ebay which the seller says is stamped SS. Sounds right as Classique Ti is ST.

[Neil]

My CSi is CS 57 1361, I think it is likely to be 1998 onward- can anyone shed any light? It was in the red/white/blue "Patriot" colour scheme originally.

[oliver1850]

The Patriot scheme is listed in the 1998 catalog, but not in the 1999. I believe that 1998 was the first year for head tube mounted cable stops, but am not sure about 1997. I think all 1997 bikes had the 25th Anniversary sticker.

I think 1999 was the first year for the C4S tubing sticker.

You might do a search for 1998 CSI and see if you turn one up, then compare frame details and/or contact poster to see how close the serial number is to yours.

[Neil]

This is CS 57 1534:



The anniversary sticker means that this has to be a 1997 I believe?

Mine had this sticker:



Bad angle, but you can see that the grey downtube sticker is slightly different.

Mine is 1361- so a couple of hundred frames before the yellow CSi.

Both frames are identical- head tube mounted cable stops etc.

So- both likely to be 1997?

[Neil]

Just found this in another thread:

Originally Posted by airbonner

Thinking maybe actually a '98: My '96 CSi #501, VSEFIREAM's #815's a '97.
Also cablestops on headtube. Anyway, it's gorgeous

As we know that Luke's CSi (the yellow one) has to be a '97 due to the 25th anniversary sticker, that means that the '97 range is (at least) #815 to #1534.

Which would put mine (#1361) bang in the middle of that range.

Does it seem likely that Serotta turned out ~800 CSi's in 1997?

EDIT: started to put together a list (mainly found on this forum) of known serial numbers/years: https://docs.google.com/spreadsheet/...lE&usp=sharing

Please contribute your serial number, and the year if you know it.

[Neil]

Actually I think that I was wrong in my last post, the more I look into this.

The cable stops moved to the headtube in 1997, does anyone know in what year the under-BB cable guides changed from being integral to the shell to being a bolted on plastic guide?

[oliver1850]

Not the first time I've wished we had a 1997 catalog - they printed one (besides the anniversary brochure).

The serial number database is a good idea. It will save a lot of thread searching if we can get enough people to participate. We were very close to having access to Serotta serial number documentation last summer - a narrow window of opportunity that may never open again.

I wouldn't have thought they built that many CSIs in one year but I could be wrong. Perhaps Dave Kirk can comment on your questions.

[sbarner]

Old post, I know, but I have two '84s and serial numbers of both of them start with 84.

Steve Barner
Bolton, VT

Originally Posted by oliver1850

There's a 50th anniversary Campagnolo frame on ebay, which has the Campy shield engraving on the stay caps and crown. That pretty well establishes it as a 1983. The serial number is 831131.

http://www.ebay.com/itm/Serotta-Camp...item4abd85eeaf

Another ebay frame: 1981 Club Special with the oval seat tube decal, above BB cable routing, seat stay cap engraving (Serotta), BB shell with "Cinelli" cast in, round brake bridge sans engraving, serial number 81156.

Would be nice to find a 1984 frame to see if the serial number starts with 84 or 4.

Towards the other end of the history, a 2006 Couer d'Acier with steel seat stays, coded CCO. I'd like to see a carbon stayed one. I think Colorado IIIs and CDAs were both CO (CCO for custom), but the CDAs with carbon may have had another code.

[Black Dog]

SC57L 2739 is a for a 1991 Collorado II, for those trying to date Early Colorado II's. I think that the switch from Colorado to Colorado II happened in 1989, but I am not 100% sure on that.

[Aaron O]

My 92' CII has:

SC55 2936