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  #1  
Old 04/05/2017, 11:49 PM
KevinLS KevinLS is offline
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Default Another daft question

I have another dumb question, but I can't find a mention it in previous threads. Does anyone know what material tubing Greeves used on the Silverstone subframes? I thought Reynolds 531, but I may be deluding myself.
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Old 05/05/2017, 06:31 AM
Dogsbody Dogsbody is offline
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Kevin, According to Derek Pickard, British 250 Racer, frame and forks were Reynold 531 tubing. Colin
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Old 05/05/2017, 07:43 AM
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Phil Hyde Phil Hyde is offline
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Default Tube

When Greeves used 531 it was a British product. Not so nowadays.

Plenty of good equivalents if you are thinking of going into production. Look for cold drawn seamless thin wall.
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Old 05/05/2017, 01:11 PM
KevinLS KevinLS is offline
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I'm not planning any production, just the repair of some old frames. The local expert says he wants to mig weld them, which is a bad idea if it's 531. You're right, clearly the tubing available nowadays welds just fine.
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Old 05/05/2017, 01:18 PM
Stan Nicholson Stan Nicholson is offline
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That would explain the bronze "welding" used on the Silverstones as I believe this is the required method for 531.
Stan
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