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 Post subject: 531 500
PostPosted: Fri Mar 22, 2013 12:08 pm 
Dirt Disciple

Joined: Mon Mar 18, 2013 9:46 pm
Posts: 40
What is the history behind these and what do they mean on old bikes


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 Post subject: Re: 531 500
PostPosted: Fri Mar 22, 2013 12:49 pm 
Two Fat Ladies

Joined: Thu Sep 06, 2012 7:43 pm
Posts: 88
Location: West Mids
Hi, I'd guess you're having a laugh, however on the off chance you're not.

531 is a type of reynolds tubing, it comes in various types, 531ST (touring) 531P (Professional) etc, etc.

500, not sure what this is, however there is a type of Reynolds tubing called 501.

Stu


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 Post subject: Re: 531 500
PostPosted: Fri Mar 22, 2013 4:06 pm 
Old School Grand Master
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Joined: Wed Jul 25, 2007 2:04 pm
Posts: 3364
Location: Completely in the dark, thanks to me good mate Terry....
Guitar106Music wrote:
Hi, I'd guess you're having a laugh, however on the off chance you're not.

531 is a type of reynolds tubing, it comes in various types, 531ST (touring) 531P (Professional) etc, etc.

500, not sure what this is, however there is a type of Reynolds tubing called 501.

Stu


500 is just plain-gauge (i.e. no butting at the ends & uniform inside diameter throughout) 501. Both are seamed (i.e. rolled from plate and welded at the join) rather than seamless (drawn from solid steel billet) tubing, using a chrome-molybdenum alloy steel. As against manganese-molybdenum steel used in 531 tubes (chrome-molybdenum takes better to the use of welded rather than brazed frame building methods).

David


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 Post subject: Re: 531 500
PostPosted: Sat Mar 23, 2013 1:07 am 
Retro Guru
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Joined: Tue Mar 29, 2011 12:42 am
Posts: 345
Location: Birmingham
supermario wrote:
What is the history behind these and what do they mean on old bikes



From Wikipedia: Reynolds Cycle Technology


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