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  #466  
Old 07-05-2021, 10:50 PM
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oliver1850 oliver1850 is offline
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Originally Posted by racemanspiff View Post
Hello,
New to the forum, but a vintage cyclist (53yrs young). I have a CSI that I am trying to determine what year it was built. The serial number is CC 59 1114, what is strange is that the top tube is long like 60.5-61cm ctc, the seat tube is 59cm ctc and the head tube is 176mm, it has a F1 carbon/Ti 1" threadless fork.

Unfortunately this bike just sits as it is just a little too large/long for me, it is for sale as a frame/fork/Chris King headset/Deda 100 cockpit. It was resprayed with Dupont Imron and is stunning in the sunlight.
Great looking CSI. Serotta was building at least 300/year, so I'd say yours was made in 1998. Might have been made in 1997 but no way to tell without the original paint (and anniversary decal). Standard geometry CSI would have CS prefix. Your CC designates custom geometry, so that explains the long top tube.

The 1998 catalog shows head tube mounted cable stops instead of the down tube shifter bosses. That may or may not indicate that your frame is a 1997. Since it's a custom, the buyer may have specified DT shifter bosses.

Last edited by oliver1850; 07-05-2021 at 10:57 PM.
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  #467  
Old 07-25-2021, 08:24 PM
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fourflys fourflys is offline
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Hey all, figured this question from my other post most get some more traction in this post...

Serial # CLS 57 134

I know this is a custom Legend ST, 57cm seat tube, and was the 134th built.

My question is this, what year do you all think this bike was built? It has the C4Ti tubing sticker and an S3 fork (can't confirm if fork is original though). I would assume this was a somewhat early bike, but since I have no idea how many of the Legend STs they built...

Thanks!
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  #468  
Old 07-28-2021, 04:25 PM
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oliver1850 oliver1850 is offline
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I would say 2003 or 2004. If it has the exterior milling on the head tube it would be later.
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  #469  
Old 07-28-2021, 08:19 PM
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fourflys fourflys is offline
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Originally Posted by oliver1850 View Post
I would say 2003 or 2004. If it has the exterior milling on the head tube it would be later.
Thanks, that's kind of what I figured. I don't think my HT is milled from me looking at it (seems pretty straight).
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  #470  
Old 07-30-2021, 11:15 AM
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oliver1850 oliver1850 is offline
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I think that you would notice the milling. It leaves a definite ledge near the top and bottom of the front of the head tube that tapers off into no ledge at the rear.
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  #471  
Old 09-23-2021, 10:14 AM
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henrypretz henrypretz is offline
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Hey there Serotta experts - I am looking at a bike that I can’t quite figure out the “model” of. It is Ti and is described as an all arounder and not necessarily a purpose built cross frame. Linear pull brakes. 3D type dropouts, down tube cable stops.
Serial number reads CCU 54 055
I was under the impression that the first “C” indicates custom, but don’t know model what the “CU” would identify as. Or is the “CC” indicative of a Colorado and the “U” something else?
In the end it doesn’t really matter, but would be nice and kind of fun to figure it out.
Thanks in advance.
Henry




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  #472  
Old 10-06-2021, 11:29 PM
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oliver1850 oliver1850 is offline
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I would say it's a custom and the model is CU. Some detail photos might give a clue as to what the model actually is. 1 1/8" head tube? What is the fork? Does it have down tube shifter bosses?
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  #473  
Old 11-22-2021, 03:09 PM
damon216 damon216 is offline
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SC 52 3386 What year?

Just picked up what looks like mid 90's Serotta Concept bike.
It's a bit of a Franken Bike in my mind as it's got a 7400 Dura Ace BB ISO taper- 112mm spindle with Campy Chorus cranks and what looks like an Athena rear with Campy hubs.

The cranks have the shield logo which are pre-1995 and take a 111mm spindle.
Saw in a catalog from '96 that Serotta offered Pearl

Serial is SC 42 3386 , Metallic pearl with red logos.

The frame is in amazing shape but the chain line is off as the right crank arm is way too far outboard... and the campy ergo shifter need to be adjusted.

Wondering if I need to go to a shorter spindle.

Sorry for the ramble, but what year do you think the frame is?
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  #474  
Old 11-23-2021, 10:45 AM
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oliver1850 oliver1850 is offline
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That sounds like a very late Colorado II, so late 1992. Does it have brake cable ports in the top of the top tube? 42 or 52? I can't imagine them making a 42 cm frame that wasn't a custom.

The combination of the slightly longer spindle and the JIS taper probably puts the crank about 5 mm outboard of where it should be. Both arms should be effected. Hopefully the crank tapers are intact and you can just switch to a
Campagnolo bottom bracket. The recent black Centaur or the older Athena are both easy to find and will work fine - as should the AC-H, AC-S, SC-S, Veloce, etc. I really like the Athena as neither cup has a stop, so you can adjust the chainline a bit if needed.
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