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PostPosted: Thu Sep 30, 2010 5:04 pm 
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Joined: Fri May 21, 2010 6:08 pm
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Location: U K
Ive just got hold of a Carlton Continental in great condition but with no seat and seatpost - does anyone. Know what size seat post it should be? Its complicated because the one I was going to use just doesnt fit!

Thanks in advance!


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PostPosted: Thu Sep 30, 2010 5:19 pm 
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Joined: Mon Feb 15, 2010 6:27 am
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Location: Staffordshire
If it's Reynolds 531 tubing, it'll be a 27.2mm seat post.........


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PostPosted: Thu Sep 30, 2010 6:01 pm 
r.B.o.T.M. & P.o.T.M. Winner
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What year is the Continental?


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PostPosted: Thu Sep 30, 2010 6:03 pm 
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Spokesmann wrote:
What year is the Continental?


without looking - Im still in the office 1976?


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PostPosted: Thu Sep 30, 2010 6:19 pm 
r.B.o.T.M. & P.o.T.M. Winner
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Ill check one of my Corsas. it aint 531 tubing by the way!


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PostPosted: Thu Sep 30, 2010 6:51 pm 
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Spokesmann wrote:
Ill check one of my Corsas. it aint 531 tubing by the way!


yes isnt it "truwell" or something?


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PostPosted: Thu Sep 30, 2010 8:10 pm 
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You might be able to tell if its Truwell by feeling for the vertical seam down the inside of the seat tube.
It was cold rolled and electric seam welded, used on raleigh for many years.
Guessing it's likely 26.4 mm.


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PostPosted: Thu Sep 30, 2010 10:09 pm 
r.B.o.T.M. & P.o.T.M. Winner
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sisyphus wrote:
Spokesmann wrote:
Ill check one of my Corsas. it aint 531 tubing by the way!


yes isnt it "truwell" or something?


Yes it will be or similar. My Corsa from 68-72 is Truwel.


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PostPosted: Wed Oct 06, 2010 12:48 am 
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mavesyn wrote:
If it's Reynolds 531 tubing, it'll be a 27.2mm seat post.........


531 had many differing size seat tubes, 26.2, 26.4, 26.8 & 27.2 from personal experience.

I'd suggest going to the lbs & ask them to size it for you with their calipers.


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PostPosted: Thu Oct 07, 2010 8:13 pm 
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Location: Cotswolds
Tony, Pre 1980 British small builders normally used butted 531 seat tube 20/23 G, which would take 27.2mm. Inside diam approx 27.3, as the seat lug generally distorted a little.
Some may have used a down tube for extra strength, 20 / 23 /20 G, which would take 26.4mm. , or possibly plain gauge 20.
26.4 was quite common in Italian frames, in the better ones with a small sleeve brazed inside the seat lug.
26.8 would fit our 21G, 26.2 a 19G.


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