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PostPosted: Fri May 25, 2007 3:31 pm 
B.o.T.M. Winner / Feature Bike
B.o.T.M. Winner / Feature Bike
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Joined: Tue Dec 13, 2005 3:26 pm
Posts: 6191
Location: Tilting at windmills and shouting at the rain.
Quote:
Mark_h4dng

You could buy a 28.6 clamp, and get it Machined out to the size you need. 29.4 is only another 0.8 Dia bigger and wouldn't weaken it very much.


Or get a 30mm and use a bit of coke can, or be really classy and use a jubilee clip (although that may limit the quick release potential a bit). Suppose we should remember it is a Sunn bike and like all things French it has to be a little different!


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PostPosted: Fri May 25, 2007 3:56 pm 
Devout Dirtbag
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Joined: Tue May 08, 2007 12:08 am
Posts: 107
Location: The United States of London
pete_mcc wrote:
. . . . . There are three standard sizes for seat post clamps and these correspond exactly with the 3 sizes of front mech: 28.6, 31.8 and 34.9mm

The only odd one is the 30mm clamp that is used on some carbon frames.


Klein attitudes, adroits, mantra and some road frames take a 36.4mm clamp, which Hopeâ„¢ and a few others make.


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PostPosted: Fri May 25, 2007 3:58 pm 
Devout Dirtbag
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Location: The United States of London
pete_mcc wrote:
Or get a 30mm and use a bit of coke can


Yep, agree this is the best route.

UK distributed Budweiser can (print sanded off) = 0.13mm thick.

Two full wraps of this would bring you within tolerance.


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PostPosted: Fri May 25, 2007 4:19 pm 
B.o.T.M. Winner / Feature Bike
B.o.T.M. Winner / Feature Bike
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Joined: Tue Dec 13, 2005 3:26 pm
Posts: 6191
Location: Tilting at windmills and shouting at the rain.
Quote:
leeww


Klein attitudes, adroits, mantra and some road frames take a 36.4mm clamp, which Hopeâ„¢ and a few others make.


Well if you have to buy one of those Kleins that needs a seat post clamp then it's your own fault that you have to source a bizarre clamp, my concept of a proper Klein doesn't need one (and as for the idea of buying a road bike, well.....):

http://www.retrobike.co.uk/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=66&g2_serialNumber=2&g2_GALLERYSID=fb683ff47c64b0b6523ee57896cd5bad

Proper Klein! :wink:


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 Post subject:
PostPosted: Fri May 25, 2007 4:28 pm 
Devout Dirtbag
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Joined: Tue May 08, 2007 12:08 am
Posts: 107
Location: The United States of London
pete_mcc wrote:
Well if you have to buy one of those Kleins that needs a seat post clamp then it's your own fault that you have to source a bizarre clamp


36.4mm is fairly easy to source, like I say Hope make one, so do KNC, my local bike shop carries Trek made ones.


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 Post subject:
PostPosted: Fri May 25, 2007 11:09 pm 
Retro Guru
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Joined: Thu Mar 08, 2007 10:36 pm
Posts: 315
Location: Snodland, Kent
If you want to go down the machined out route then I am happy to help.


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