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  #1  
Old 6th May 2010, 09:19 PM
filip arvidsson filip arvidsson is offline
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Default Rear upright tube - tolerance

Hi!
I'm trying to source a 5inch, 127mm, tube.
I've found a 130mm tube, would that tube work or should I order a 5inch tube from England?
Thank you
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Old 6th May 2010, 09:43 PM
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Bonzo Bonzo is offline
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I would imagine that the wall thickness would be the most important thing

You'll almost certainly be able to make allowances for the extra 3mm OD when you fabricate the jig

Just measured a piece of standard UK spec 5" pipe

The wall thickness is 4.9 mm & the oD is 127.5 .... As steel sizes are nominal, I would not be surprised to find a piece of 5" pipe with an OD of 130mm nor as little as 125mm

If the wall thickness is there, I would say, go for it.
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Old 7th May 2010, 06:42 AM
filip arvidsson filip arvidsson is offline
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The wall thickness is 3mm, as per the book?
Has this been changed?
Thank you
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Old 7th May 2010, 09:35 AM
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Hi Pilip

No the book spec for the wall thickness has not been changed

If you can get some pipe that has a wall thickness of at least 3mm & the OD is 130mm, that should be ideal for the job

My 5" pipe just happened to be off-cuts from my suppliers standard stock & has a nominal wall thickness of 5mm .... Could have got 5" with a wall thickness of 3.25mm but would have had to buy a full length

What you have found should be fine & will save the extra cost of obtaining from the UK.
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