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  #1  
Old 23rd April 2012, 22:29
270KTA 270KTA is offline  
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750x20 Tyres and Wheels

Can anybody give an approximate weight for a 750x20 tyre mounted on a split rim steel wheel? I'm buying some for my Bristol SU but can't secure a quote for delivery without an approximate weight... Help gratefully received!
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Old 23rd April 2012, 23:29
G-CPTN G-CPTN is offline  
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Initial search suggests 100lbs for the wheel only.

Source of information, page 18 of:- http://www.accuridewheels.com/completeversion.pdf
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Old 24th April 2012, 00:10
G-CPTN G-CPTN is offline  
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Tyre weight is proving difficult to find, best estimate would seem to be:-
Quote:
The weight of a used truck tyre is about 53 kg.
From:- http://www.mfe.govt.nz/publications/...tml/page3.html
but that would be a much larger tyre than 7.50x20.

Quote:
an 18/32" rib tire in the 295/75R22.5 size, which would have an overall weight of around 110 lb. as an example.
From:- http://www.bridgestonetrucktires.com...ctor_facts.asp

I would therefore guess at about half that weight - maybe 60lb at most.

When I was working I would have had access to all the weights that you require. These were published (by me) in a thick catalogue which was supplied to bodybuilders. Included was the dimensions (including weights) of every production option - so that the bodybuilder could calculate payload (and therefore body size required).

If only I still had my books . . .
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Old 24th April 2012, 00:52
G-CPTN G-CPTN is offline  
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This seems to suggest a much lighter weight (34 lbs) for a 7.50x20 tyre, but I suspect that it is a lighter construction than your type of tyre.
It seems from the loads to be for an SUV rather than a bus.

http://www.petestirestore.com/BKT-AS...x20-p2162.html

Using this as a minimum it seems that 50-60 lbs might not be too far out for your tyre.
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Old 24th April 2012, 16:24
270KTA 270KTA is offline  
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Thank you so much for the calculations - I hadn't expected such a speedy and thorough reply!

I'll ask for a quote based on 150lbs per unit and let you know how I get on.

David
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