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PostPosted: Thu May 20, 2010 9:09 pm 
Retro Guru

Joined: Wed Nov 18, 2009 9:54 pm
Posts: 403
Location: Essex
its blue came in wheelless, Campag nuovo record, dura ace stem 531 tubing, any ideas on what it is? am I making this a project, paint could do with at least touching up....


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PostPosted: Fri May 21, 2010 10:27 am 
King of the Skip Monkeys
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Joined: Wed Nov 07, 2007 4:34 pm
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Location: Moomin Valley
old and very nice

does it actually matter about the specifics? It would have been one of their top end frames


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PostPosted: Fri May 21, 2010 11:06 am 
Old School Grand Master
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Joined: Wed Feb 20, 2008 12:21 pm
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Location: Lost in Translation
Mid-late seventies Colstar?

http://homepage.ntlworld.com/nkilgariff ... Frames.htm

- I assume it's a fully butted frame, rather than plain gauge main tubes.

Is there a "PAT" date on the rear derailleur knuckle?


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PostPosted: Fri May 21, 2010 6:43 pm 
Retro Guru

Joined: Wed Nov 18, 2009 9:54 pm
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Location: Essex
just curious about it all, i like to know what I'm riding...
one-eyed_jim it does look alot like that colstar has reynolds 531 db tubing from what the stickers say, I couldn't see a date on the rear derailleur found where it says patent but no date, maybe i'm not looking in the right place?
need to get about sourcing some wheels for it now, and setting a rough value so i can purchase it, it got donated to us so I'd have to buy it off myself, everything else goes for about £40....


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PostPosted: Sat May 22, 2010 12:20 pm 
Retro Guru

Joined: Wed Nov 18, 2009 9:54 pm
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Location: Essex
Patent - 74 is what the mech is saying, the seatpost and chainset are by SR?


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PostPosted: Sat May 22, 2010 12:22 pm 
Retro Guru

Joined: Wed Nov 18, 2009 9:54 pm
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Location: Essex
Patent - 74 is what the mech is saying, the seatpost and chainset are by SR?


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PostPosted: Sat May 22, 2010 3:56 pm 
Old School Grand Master
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Location: Lost in Translation
SR (Sakae Ringyo) was fitted as original equipment to the full-build Colstar in '77:

http://homepage.ntlworld.com/nkilgariff ... rCycle.jpg

There are some obvious differences between your frame and that one - such as the pump peg and stops for the rear brake - and it looks as though the Colstar used long-point lugs in '77. If the rear mech's original to the bike, 74-75 would be a reasonable estimate of the year of manufacture of the frame.

Does your frame have water-bottle braze-ons?


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PostPosted: Sun May 23, 2010 8:05 am 
Retro Guru

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Location: Essex
nope no water bottle braze ons


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PostPosted: Sun May 23, 2010 9:26 am 
Road Moderator
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Location: Sheppey, Kent
There should be a a frame number under the bottom bracket, should be quite easy to date from that. As a general rule if the seatpost is 27.2mm it will be 531 double butted.


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PostPosted: Tue May 25, 2010 12:26 pm 
Retro Guru

Joined: Wed Nov 18, 2009 9:54 pm
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Location: Essex
016778- frame number


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