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PostPosted: Wed Jan 28, 2009 12:38 pm 
King of the Skip Monkeys
King of the Skip Monkeys
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Location: Moomin Valley
pigman wrote:
another divers helmet stop on the top tube!
Looks like different forks tho, so originality is lost.

I wasnt going to pi## on your bonfire, but Id keep the merckx and dump the raleigh. That seat cluster was notorious for coming apart. I personally know of 2 people who had this happen. One was a shop stock 531 and another guy had a 753 SP one who's went twice (so 3 instances in total). In fairness to raleigh tho, they never quibbled and the SP guy always got a fresh respray in his choice of colours.


I know the forks are gash but...

http://cgi.ebay.co.uk/REYNOLDS-531-FORK ... 240%3A1318


:lol:


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PostPosted: Wed Jan 28, 2009 12:45 pm 
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Looking at the Reynolds catalogue, 753 is listed as 28mm 22/28SB, so 28 is 0.376mm, giving a 27.2mm seat post.

531SL 851 looks more likely, 28mm OD, 22/24SB would work out around 26.8


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PostPosted: Wed Jan 28, 2009 2:32 pm 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
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pigman wrote:
That seat cluster was notorious for coming apart.


Tony Oliver in his book on framebuilding says that shot-in stays like that are really only suitable on TT frames...because they weren't exactly robust.


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PostPosted: Wed Jan 28, 2009 5:16 pm 
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retrojon wrote:
Looking at the Reynolds catalogue, 753 is listed as 28mm 22/28SB, so 28 is 0.376mm, giving a 27.2mm seat post.

531SL 851 looks more likely, 28mm OD, 22/24SB would work out around 26.8


You could be right, but here's a documented 1980 753 frame with a 26.8mm post:

http://www.wooljersey.com/gallery/v/Pet ... n/album94/

and the (later) documents here describe 753 as having a 0.5mm seat tube wall:

http://www.equusbicycle.com/bike/reynol ... -sizes.jpg

http://www.equusbicycle.com/bike/reynol ... ochure.jpg


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PostPosted: Wed Jan 28, 2009 5:43 pm 
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hamster wrote:
Tony Oliver in his book on framebuilding says that shot-in stays like that are really only suitable on TT frames...because they weren't exactly robust.

Seemed to work OK for Ritchey. I know plenty of Ritcheys break, but I haven't seen many broken there.


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PostPosted: Wed Jan 28, 2009 6:19 pm 
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one-eyed_jim wrote:
and the (later) documents here describe 753 as having a 0.5mm seat tube wall:


Well that's no good! 0.5mm is the same as 531.

Is 753 always silver soldered? Perhaps scratching a bit of paint off might reveal more.

I propose it is cut into pieces for further examination.


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PostPosted: Wed Jan 28, 2009 6:37 pm 
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retrojon wrote:
Is 753 always silver soldered?

Yes, or at least it should be. But there's nothing to stop 531 being silver soldered either.


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PostPosted: Wed Jan 28, 2009 9:37 pm 
rider | rBoTM Winner
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Dave Marsh (who is one of the top experts on Raleigh SB frames having worked there) told me that 753 was 26.8 and 531 was 27.2.

You could ring him at his shop and ask his opinion.


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PostPosted: Wed Jan 28, 2009 10:10 pm 
King of the Skip Monkeys
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would there be any clues in the serial number?


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PostPosted: Thu Jan 29, 2009 8:49 am 
Retro Guru

Joined: Sun Aug 03, 2008 12:31 am
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If you can weigh the frame, that might give a clue whether it’s 531 or 753.


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