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PostPosted: Wed Sep 26, 2012 4:08 pm 
Retro Guru
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Joined: Tue Jun 19, 2007 3:34 pm
Posts: 1847
Location: Launceston, Australia
here we go...
http://www.privateer.cc/2012/01/chris-k ... i-arc.html

just need for them to get to production... save everyones bikes

bettwer pics...
http://www.cycleexif.com/chris-kings-yeti-a-r-c

Image


Last edited by T'boo Ted on Wed Sep 26, 2012 4:18 pm, edited 1 time in total.

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PostPosted: Wed Sep 26, 2012 4:14 pm 
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Joined: Tue Aug 14, 2012 4:51 pm
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Location: Llantwit Major
Is it just me or did anyone else think that Chris King wasn't a real person. For some reason I just thought it was a company name and there wasn't a real person riding real bikes.


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PostPosted: Wed Sep 26, 2012 4:15 pm 
Old School Grand Master
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Joined: Mon Jun 14, 2010 9:06 pm
Posts: 4422
Location: Herts UK
Antstark wrote:
retrobikeguy wrote:
Agree with above.

I am really surprised no one has invented a frame saver for the headtube, RBG


Like a..... big jubilee clip ?? Anodize a few and there'd be a ready market on here :D :D


something more like a seat post clamp would be better than a jubilee clip.

Image


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PostPosted: Wed Sep 26, 2012 4:20 pm 
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Joined: Sun Jul 05, 2009 11:55 am
Posts: 946
Location: Swansea/Birmingham
It is repairable and there are many different ways of going about it, this is what I did to my Pace RC200 when the headtube cracked: http://www.retrobike.co.uk/forum/viewtopic.php?t=199757


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PostPosted: Wed Sep 26, 2012 4:20 pm 
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Location: Launceston, Australia
Logic.Al wrote:
Is it just me or did anyone else think that Chris King wasn't a real person. For some reason I just thought it was a company name and there wasn't a real person riding real bikes.


ha I always thought it was probab;ly originally some guy, but got taken over by some big corp (not bike related)... but it's good to see that he is still making stuff...


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PostPosted: Wed Sep 26, 2012 6:27 pm 
retrobike rider
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Joined: Tue Jan 29, 2008 11:04 pm
Posts: 1799
Location: A wretched hive of scum and villainy...
What's the outside diameter of the headtube?
You can get 36mm ID stainless steel rings from Ceeway if the OD's right.
It's probably more like 38-41mm, though :(

Otherwise, how about getting some rings machined like the Yeti has?
Looks like they've heated them and dropped them on over the headtube (paint removed & chilled, Pipefreeze), giving a good tight interference fit, like a cartwheel tyre.
Maybe even just bonded with a high strength Loctite (638?), but that won't close the crack up to restore the headset fit.

If you have to resort to a clamp, DKG make some pretty big seatclamps at 1 1/2"(38.1mm+-0.2) and 1 5/8"(41.3mm +- 0.2). I've got both sizes in stock.
Image

All the best,


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PostPosted: Wed Sep 26, 2012 6:58 pm 
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Joined: Wed May 18, 2011 9:26 pm
Posts: 1476
Location: essex
I will have a mesure up when the three kids are in bed :wink:

if i clamp will i have to still drill?

Thanks for all your ideas :D


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PostPosted: Wed Sep 26, 2012 7:00 pm 
Retro Guru

Joined: Wed May 18, 2011 9:26 pm
Posts: 1476
Location: essex
I will have a mesure up when the three kids are in bed :wink:

if i clamp will i have to still drill?

Thanks for all your ideas :D


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 Post subject:
PostPosted: Wed Sep 26, 2012 7:43 pm 
Retro Guru

Joined: Wed May 18, 2011 9:26 pm
Posts: 1476
Location: essex
The O.D IS 41mm

More pics:


Attachments:
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marin 2 (Large).jpg
marin 2 (Large).jpg [ 57.59 KiB | Viewed 545 times ]
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 Post subject:
PostPosted: Wed Sep 26, 2012 8:30 pm 
retrobike rider
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Joined: Fri Mar 13, 2009 7:19 pm
Posts: 3132
Location: Leeds, for ages!
don't mess about, get it welded by a experienced alu welder.

i once needed something doing like your headtube, googled local alu fabricators and found loads. someone in the workshop will do it for cash.

now, the result isn't pretty as, the result is a silver garden worm just where you don't want it but, it will be fixed right. :wink: although the new silver worm cannot be ground down(for safety reasons) it won't look too bad and you may be able to disguise it somehow :?


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