Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Will an old Campagnolo headset fit a 90's model Kestrel frame?

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Will an old Campagnolo headset fit a 90's model Kestrel frame?

Old 07-11-15, 09:14 PM
  #1  
ghostm42
Senior Member
Thread Starter
 
Join Date: Jan 2010
Posts: 80
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Will an old Campagnolo headset fit a 90's model Kestrel frame?

I don't know anything about Campagnolo headsets, but I might be able to get one. I just wasn't sure if it'll fit a mid-90's Kestral carbon fiber frame. I don't have either in front of me yet, but the person who has the headset says it's English threading.

I see Sheldon Brown's page, but don't know really understand it.
Sheldon Brown's Bicycle Headset Dimension Crib Sheet
For example, it states "Obsolete. Threads are cut at 55 degrees, but an ISO or J.I.S. top headset can be used." Does that imply it won't work?

Thanks.
ghostm42 is offline  
Old 07-11-15, 10:27 PM
  #2  
SkyDog75
Senior Member
 
Join Date: May 2011
Location: Upstate NY
Posts: 3,818

Bikes: Bianchi San Mateo and a few others

Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 632 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
We'll need more info to give you a definite answer, but I think I can give you a "probably".

Glancing at Bikepedia, it looks like all 1990s Kestrel road bikes used a 1" threaded heatset. Bikepedia only lists Kestrel mountain bike headsets in '95 and afterward, and those are all listed as 1 1/8". If the guy with the frame said "English threaded", I'm assuming we're talking about a road bike, so a Campagnolo 1" threaded headset would fit the frame, if that's what kind of Campy headset you have.

If the headset fits the frame, then it should work so long as the fork isn't too short. (Or "so long as the headset's stack height isn't too tall for the fork", depending on how you look at it.)

Last edited by SkyDog75; 07-11-15 at 10:31 PM.
SkyDog75 is offline  
Old 07-12-15, 08:54 AM
  #3  
ghostm42
Senior Member
Thread Starter
 
Join Date: Jan 2010
Posts: 80
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Wow. I left out a bunch of info. Yes, it's a 90's Kestrel CF road frame with a 1" threaded headset. I don't know the threading on that, but since it's fairly recent, I'm assuming it's English. I just didn't know if the Campy headset (also mentioned to be English threading) would fit due to some other factors. Such as that "cut at 55 degrees" statement mentioned on Sheldon Brown's website that I don't fully understand.
ghostm42 is offline  
Old 07-12-15, 09:11 AM
  #4  
Homebrew01
Super Moderator
 
Homebrew01's Avatar
 
Join Date: Jul 2004
Location: Ffld Cnty Connecticut
Posts: 21,055

Bikes: Old Steelies I made, Old Cannondales

Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 797 Post(s)
Likes: 0
Liked 30 Times in 22 Posts
A potential problem would be the fork crown. There are 2 different sizes, so you would need to know what the fork is cut for.
__________________
Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike.

FYI: http://www.bikeforums.net/forum-sugg...ad-please.html
Homebrew01 is offline  
Old 07-12-15, 09:20 AM
  #5  
SkyDog75
Senior Member
 
Join Date: May 2011
Location: Upstate NY
Posts: 3,818

Bikes: Bianchi San Mateo and a few others

Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 632 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
I assumed (dangerous, I know) that the frame and fork would both be ISO. If the fork crown is JIS (27 mm), it can be cut down to ISO (26.4 mm) to work with a Campagnolo headset's crown race.
SkyDog75 is offline  
Old 07-12-15, 09:24 AM
  #6  
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Posts: 41,928

Bikes: 8

Mentioned: 188 Post(s)
Tagged: 0 Thread(s)
Quoted: 6833 Post(s)
Likes: 0
Liked 213 Times in 178 Posts
step 1 buy a digital caliper and measure things for yourself.
fietsbob is offline  
Old 07-12-15, 03:33 PM
  #7  
gfk_velo
Senior Member
 
Join Date: Mar 2014
Posts: 282

Bikes: Too many!

Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 54 Post(s)
Likes: 0
Liked 3 Times in 3 Posts
Originally Posted by fietsbob View Post
step 1 buy a digital caliper and measure things for yourself.
Definitely the best approach - measure the top and bottom of the head tube in three directions and average the result - as it's notoriously difficuolt to get an exact internal diameter, plus you never know if the hole you are measuring is perfectly circular (yes, I know it *should* be ...) and likewise, measure the OD of the crown race seat, 3 directions and average.

I'd guess (and it is a guess) that the Kestrel might be JIS, so even if it was a good idea to mill the fork crown down to ISO size (and I'd be very careful about that on any composite or bonded alloy fork, as you never know when you are going to start cutting into a bond), you might hit a problem with the frame cups as older Campagnolo headsets differ from JIS in that dimension. You also need to be careful if it's an older Campag headset even if the frame is ISO, as older Campag cup OD was 30.2 mm, wheras the ISO standard is 30 mm.
gfk_velo is offline  
Old 07-12-15, 08:06 PM
  #8  
IthaDan 
Senior Member
 
IthaDan's Avatar
 
Join Date: Jan 2012
Location: Ithaca, NY
Posts: 4,915

Bikes: Click on the #YOLO

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 26 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Two potential log jams here- Crown race size and stack height. Campy headsets are on the taller end of the spectrum.
__________________

Shimano : Click :: Campy : Snap :: SRAM : Bang
IthaDan is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
BillyD
Road Cycling
10511
01-01-18 06:43 AM
Human_Amplifier
Folding Bikes
4
05-13-13 11:35 AM
Tude
Foo
29
10-13-07 09:42 AM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.