Serotta CSI Frame 58cm

[rwsaunders]

2001 CSi here...SN CCS 58.5 2155...TdF lugs, metal ht badge and F1 fork in Big Boy blue. It's a real pleasure to ride and a good looker as well.

[djcwardpg]

Upon closer inspection…. I finished the build today, was able to reuse my handlebar tape even! Running a Ritchey stem on a 1” quill adapter for now but I have several other stems in my collection. Will probably end up with a nice Vice Versa that has given me good service in the past.

[dustyrider]

Oh you tease!

[sc53]

David—my CSI is also a 1996! It came with a steel fork and my shop installed Campy Record 8 on it. Its original paint was a dark green to black fade. I later had it repainted by Serotta (when they were still doing that) to royal blue and white. Still a beautiful riding bike. Mine was a custom but I took a standard 50 cm frame so that’s what I got.

[Ken Robb]

I had a stock 58cm CSi with a F1 fork. Our old pal Adam specced it as a demo when he worked at the Serotta dealer in San Diego:Bikes USA. It was a bit small for me. My stock 60cm Legend fit me very well. I bought the CSi for my wife when Performance Bikes bought Bikes USA and blew out Serotta stock since they were not franchised dealers. Even though it was a bit small for me I "sneaked" some rides on it when my wife wasn't looking and it was a great ride.Someone in our group here bought it and I haven't noticed it being resold since. 10 speed Chorus and dark green paint with delicate tiny gold flecks.

[djcwardpg]

Got it out in the sun this morning. Awaiting my pedals.

[oliver1850]

My guess is that the stamp in the BB shell is CS 58L. 1996 sounds right to me. In the 1996 catalog the Kinesis Al fork is listed as optional for the Ti frame. If the customer wanted it for a CSI I'm sure Serotta would have sold it that way. AL forks were popular at the time even on high end frames. Kinesis also made a similar fork with carbon legs. I have one on a Serotta Colorado AL. Are you sure that's not what you have? Your frame likely has custom geometry which would account for the fillet brazed/half lug construction.

[djcwardpg]

The aluminum fork ride is a bit jarring. Recall that the bare head tube is 165mm. Still considering steel or carbon fiber options. Problem for me is that I need a long steerer tube. The tape measure photos give approximations.

Threaded: If I don’t find one to suit otherwise, there’s a black Serotta 1” threaded steel fork on the bay right now. It has a 245mm steerer tube. Something about a steel fork with a lugged Serotta fork crown just says “do it”!

If I flush up the lock nut, then the steerer tube should be ~8 1/8” or 206 mm minimum.
If I duplicate the setup as shown and keep that spacer ring, then I need at least a 225mm (8 5/8”) steerer tube.

Threadless:

To keep the stem height the same as shown I need at least a 10 5/16” or 262 mm steerer tube.
Minimum steerer tube would be ~10” or 254 mm.

[dustyrider]

A threaded fork may allow you to consider something with a shorter steerer and I think member sailorkevin has a yellow Serotta lugged steel 1” threaded fork for sale in the classifieds. I am the worst when it comes to finding old posts and can’t recall the steerer length. And of course for whatever reason someone has deemed you unable to post in the classifieds until you meet their criteria, so there’s that. I’m sure you’ll find something and if you stick around you can post a WTB in the classifieds. Someone’s bound to have something around here that will work.

[fijichf]

Based on the information that you’re posting, go for the threaded steel fork that’s for sale and look for a Nitto Technomic stem, as you’ll get the bar height that you need. A threadless fork with a longer steerer tube will require too many spacers for your particular needs imho.

[djcwardpg]

Originally Posted by dustyrider

… I think member sailorkevin has a yellow Serotta lugged steel 1” threaded fork for sale in the classifieds. … And of course for whatever reason someone has deemed (me) unable to post in the classifieds.

I would love to have that yellow fork but his photos show a steerer tube length of ~7 1/2” which is ~190 mm. He shows it mounted properly (read - flush!) in the head tube of his 56cm Atlanta frame, so it might just be a bit too short for me? Yes, I cannot reply in the classifieds.

[djcwardpg]

Just saw one with plenty of steerer tube length. 1” threadless. Hard to argue with the price. Forgot to add that I weigh 180 pounds.

[djcwardpg]

Initial road test says, yes! No more jarring from the front over slight road defects. Of course I steer clear of pot holes on any bike I ride! I had to cut the steerer tube just a bit to properly fit my 25mm stack of spacers and the adapter that lets me run 1 1/8” stems like the Ritchey model shown. Luckily I’ve stockpiled tools over the years so I could drive the crown race onto the “new” fork, press in the FSA 1” Threadless head set shells and even drive a star nut down the proper distance into the steerer tube after cutting it to length.

I’d post larger photos but the file size limitations on this site are nuts. Oh well…

[robt57]

Kestrel forks IMO were the best, I had a Ti steerer/droupout one on my 200 EMS #1 bike like 1998. I got it for my threadless conversion from the one it came with,

[dustyrider]

Awesome! There aren’t many things better than when a bike finally comes together. Enjoy.