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Home > Visual / Audio Mods > Wheels & Tires > How to Read the Sidewall of a Tire

How to Read the Sidewall of a Tire

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tC_vixen


Reg'd: Aug 16, 2007




The graphic above shows what each letter and number on the sidewall of a tire indicates.


The following is a breakdown of the components of the size of the tire.

P
Passenger car tire. If there is no P before the size it would indicate it is a European metric tire. An LT before the size would designate a light truck tire.

205
This is the Section Width in millimeters. This measurement is taken from sidewall to sidewall.

65
This number refers to the height of the sidewall, or the Aspect Ratio. It is a percentage of the section width. In this example, you would take 65 percent of 205 millimeters and this would give you the sidewall height.

R
Radial tire construction.

15
Wheel diameter in inches.





Information Source

[#] Apr 22, 2008 01:33am
tinx_winx


Reg'd: Nov 15, 2007

Detailer

i dont get it, was this just an out of the blue thing

-i now refuse to fix this-
[img]html:http://i20.tinypic.com/6jyst5e.jpg[/img]
[#] Apr 22, 2008 01:58am
andino


Reg'd: Mar 05, 2006

Godlike Advisor

I'm pretty sure her intention was to help those who don't understand what the sidewall marking mean.





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[#] Apr 22, 2008 01:59am
X_RockstaR_X


Reg'd: Jun 07, 2007

Tech Advisor

Well this helps ALOT cuz apparently I read this wrong and under-inflated my tires drastically. But luckily my friend caught it before I went to far on these tires. The bad thing is there is a little bit of sidewall damage and these are pretty expensive tires (kuhmo spt's)



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[#] Apr 22, 2008 02:32am
tC_vixen


Reg'd: Aug 16, 2007



tinx_winx wrote:
i dont get it, was this just an out of the blue thing


Get what? There's nothing to get. Just read and learn.

[#] Apr 22, 2008 04:10am
tC_vixen


Reg'd: Aug 16, 2007



X_RockstaR_X wrote:
Well this helps ALOT cuz apparently I read this wrong and under-inflated my tires drastically. But luckily my friend caught it before I went to far on these tires. The bad thing is there is a little bit of sidewall damage and these are pretty expensive tires (kuhmo spt's)


LOL. Glad it helps you. I did a little research so I wont make the same mistake.

[#] Apr 22, 2008 04:11am
FrAnkRYzzO


Reg'd: Oct 21, 2005

$upervillain
for Hire

I think its also worth mentioning that where it indicates the maximum load PSI, that this is not the pressure you are supposed to fill your tires to!!!! The correct pressure is written on the inside of your driver's side door on the sticker.

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[#] Apr 22, 2008 08:22am
VIP_tC08


Reg'd: Dec 02, 2007

Godlike Advisor

Awesome information nadia, another great contribution to the forums


'08 // Flint Mica // tC
[#] Apr 22, 2008 10:17am
Orin


Reg'd: Dec 08, 2005


I'll definitely refer back to this because I sometimes forget.

Thanks Nana

[#] Apr 22, 2008 10:18am
1KawaiTcInMS


Reg'd: May 21, 2008

Tire Changer

Although i knew some of the information I did learn a couple of things i didnt know thanks for posting that. I actually have to buy new tires so ill keep this thread in mind!~

[#] Jun 02, 2008 10:32am

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