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Useful on-line tyre size calculator
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Topic: Useful on-line tyre size calculator (Read 2011 times)
Fastbrit
Hero Member
Posts: 4731
Keep smiling...
Useful on-line tyre size calculator
«
on:
September 28, 2007, 09:37:48 am »
Just discovered this useful on-line resource that allows you to calculate tyre diameter etc – it even goes down as skinny as 135 x 15...
http://www.tyresave.co.uk/tyresize.html
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Der Kleiner Panzers VW Club
12.56sec street-driven Cal Looker in 1995
9.87sec No Mercy race car in 1994
Seems like a lifetime ago...
Zach Gomulka
Hero Member
Posts: 6991
Don't piss down my back and tell me it's raining.
Re: Useful on-line tyre size calculator
«
Reply #1 on:
September 28, 2007, 17:57:47 pm »
You can also figure out tire diameter with some simple math... Say you have a 205/70/15 and you need to know the diameter in inches. First take 205 and divide by 25.4 to convert millimeters to inches = 8.07". Next, multiply that by the aspect ratio, in this case it is 70%, or .7 = 5.65". That will give you the height of one sidewall. Now since 2 sidewalls make up the diameter of a tire, multiply that by 2 = 11.3". Add in the diameter of your wheel, 15", and you have 26.3", the mathematical diameter of a 205/70/15.
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Born in the '80s, stuck in the '70s.
Fastbrit
Hero Member
Posts: 4731
Keep smiling...
Re: Useful on-line tyre size calculator
«
Reply #2 on:
September 28, 2007, 19:05:51 pm »
Zach, I know... but how much quicker is it to select three numbers and hit a 'button'!
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Der Kleiner Panzers VW Club
12.56sec street-driven Cal Looker in 1995
9.87sec No Mercy race car in 1994
Seems like a lifetime ago...
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