tyre sizes

Submitted: Friday, Mar 11, 2005 at 08:58
ThreadID: 21140 Views:3241 Replies:5 FollowUps:1
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Can someone please let me know the sizes of tyres eg..... 265 = ? 28 = ? and so on as I get confused when looking for tyres

Cheers Peter.
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Reply By: pjchris - Friday, Mar 11, 2005 at 09:40

Friday, Mar 11, 2005 at 09:40
Peter,

have a look at the Tyre Bible

In short most 4wders refer to tyres by their diameter in inches. Use the info from the tyre bible above to work out the diameter of your original tyres in mm then convert to inches.

Peter

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Reply By: Leroy - Friday, Mar 11, 2005 at 09:45

Friday, Mar 11, 2005 at 09:45
But I have found tyre height varies from manufacturer to manufacturer. 31" cooper ST's for example didn't stand as tall as my 31" BFG muddies. Seemed like almost 20mm difference in height!

Leroy
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Reply By: GeeVee - Friday, Mar 11, 2005 at 09:52

Friday, Mar 11, 2005 at 09:52
Peter,

There is a good rolling diameter calculator to compare tyre options at:

http://daihard.org/

Go into the TUNING section and then WHEEL SIZES

285/70/R16 means - Tread width = 285mm
Profile height = 70% of 285 = 200mm
R16 = 16 inch rim

Regards,
Greg
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Follow Up By: Member - Roachie (SA) - Friday, Mar 11, 2005 at 13:50

Friday, Mar 11, 2005 at 13:50
Peter,

Greg has outlined it spot-on.......one thing always stuffs me up though; why do they have to mix imperial with metric (ie: 16 inch wheel, but mm used for the tyre width and profile!!!!)
It's like telling somebody there speed in furlongs per fortnight...haha

So, to add to what Greg has said, you now need to work out how many mm there are in 16 inches, then add 400 to that figure to give you the overall diameter (in mm) of the tyre.

Roachie
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Reply By: MrBitchi - Friday, Mar 11, 2005 at 14:18

Friday, Mar 11, 2005 at 14:18
Another one at online conversion

AnswerID: 102067

Reply By: Member - Duncan W (WA) - Friday, Mar 11, 2005 at 20:35

Friday, Mar 11, 2005 at 20:35
Peter, try 4wd worlds website www.4wdworld.com.au they have a page or 4 that explains tyre sizes, codes you name it. Even a tyre dill like me could understand it.

Dunc.
Dunc
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