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

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.

The wall thickness is 3mm, as per the book?
Has this been changed?
Thank you

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 :eek:

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