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Comparing tyres - dimensions... please!

  • P.Y.
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30 Jul 2010 16:19 - 30 Jul 2010 16:20 #3998 by P.Y.
Apologies if this has been asked before. Has anyone a chart of tyre dimensions? What is the overall diameter of a 205-70-15, and a 195-80-15? It would help compare one tyre with another and its effect on gearing.
Last edit: 30 Jul 2010 16:20 by P.Y..

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30 Jul 2010 16:24 #3999 by mlines
Just use an online tyre calculator

www.etyres.co.uk/tyre-size-calculator.htm

Bear in mind most tyres are actually slightly bigger than the calculator shows, something to do with "rolling radius" a tyre dealer was trying to warn me that his 31" tyres came in at 33" inches in reality.

Martin

Martin

2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses

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31 Jul 2010 09:19 #4002 by ooky_123
yes, we run 215x80r 15's and in reality, our diamond backs are closer to 30" than the 28" they should be ... 19mm treablocks were to blame !!

Former owner of Little "Ooky", who has now started a new life in Shetland

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