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PostPosted: Mon Apr 02, 2007 7:06 pm 
Old School Grand Master

Joined: Wed Jun 29, 2005 11:18 am
Posts: 15806
Location: near cwmcarn
chris king make custom bevelled headsets to fit flared headtubes. worth the high price if its a rare/priccy/ emotional attachment, frame.


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 Post subject:
PostPosted: Mon Apr 02, 2007 8:20 pm 
Dirt Disciple

Joined: Sun Dec 03, 2006 9:27 pm
Posts: 91
Location: Thatcham,Berks,UK
Just put a King in a 'new' frame and the bottom cup pushed in by hand and then moved the King to my Kahunna.Put a new Hope headset in the 'new' frame and had to use the press to get it in.


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 Post subject:
PostPosted: Mon Apr 02, 2007 8:36 pm 
Dirt Disciple
User avatar

Joined: Thu Mar 15, 2007 4:37 pm
Posts: 98
Location: The Parish of St Evenage
MadCowKev wrote:
was MC Graham involved in that engineering masterclass?


Strangely enough no, but he would most probably have used duct tape :D


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 Post subject:
PostPosted: Mon Apr 02, 2007 8:52 pm 
Old School Grand Master

Joined: Wed Jun 29, 2005 11:18 am
Posts: 15806
Location: near cwmcarn
thrustyjust wrote:
Just put a King in a 'new' frame and the bottom cup pushed in by hand and then moved the King to my Kahunna.Put a new Hope headset in the 'new' frame and had to use the press to get it in.


given the king tolerances I know what I'd be worried about. early rockshox king crown races could occasionally be loose fitting; again not a king problem ;)

I've used hope headsets, happy to get a year out of them & the bearings are toast.


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 Post subject:
PostPosted: Mon Apr 02, 2007 8:53 pm 
Retro Guru
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Joined: Tue Jun 06, 2006 1:08 pm
Posts: 958
Location: Mansfield, Notts
Would it make you happier if I resprayed my Cannondale in coca cola livery pete hmmm? lol, thanks for all the help chaps at least I know I can get it sorted now thought I might have had to start looking for another frame I like. It is a strange headtube to be honest though its recessed slightly more around where the cups go in the original headset was a nice snug fit but has never been changed so made me wonder if headset and headtube were a funny size. Can't wait to get riding it again with all its new old bits lol will be like its been reborn.


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 Post subject:
PostPosted: Mon Apr 02, 2007 11:59 pm 
Klein Guru / BOTM Winner

Joined: Fri May 05, 2006 6:06 pm
Posts: 984
Location: Houston TX
is that a 1" head set?

there are 2 1" standards, the JIS and the more common European standard

The JIS head sets have a 27.0mm crown race and 30.0mm cups. The European standard 26.4mm crown race and 30.2mm cups. So a JIS cup would fit too loose in a standard head tube.

Carsten

One-inch Japanese Industrial Standard (JIS)
Common on many Asian manufactures bicycles, both road and MTB
Fork column outside diameter- 25.4mm (1")
Head cup race OD- 30.0mm
Acceptable head tube ID range- 29.75mm to 29.9mm
Fork crown race ID- 27.0mm
Fork crown seat OD acceptable range- 27.1mm to 27.2mm
Stem diameter at quill- 22.2mm


One-inch "Modern European" Standard
Many road bike and some MTB bikes
Fork column outside diameter- 25.4mm (1-inch)
Head cup race OD-30.2mm
Acceptable head tube ID range- 29.9mm to 30.1mm
Fork crown race ID- 26.4mm
Fork crown seat OD acceptable range- 26.5mm to 26.7mm
Stem diameter at quill- 22.2mm


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 Post subject:
PostPosted: Tue Apr 03, 2007 7:36 am 
Retro Guru
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Joined: Tue Jun 06, 2006 1:08 pm
Posts: 958
Location: Mansfield, Notts
Is it a 1" headset yeah so that probably explains a lot


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