Tire sizes breakdown

Archived topics from the Wheels and Tires Forum
Post Reply
MAJ28
Registered User
Posts: 295
Joined: Fri Aug 17, 2001 11:57 pm
Location: Pittsburgh, PA
Contact:

Tire sizes breakdown

Post by MAJ28 »

As i was looking for suspension parts I came across this, I knew nothing about tire sizes.  This answered some of my questions, hope it will help others:

Reading Tire Sizes:  

Example Size:  
P205/60R-15OWL  

P - Passenger  

Tire sizes can also start with the following:  

BP - Cosmetic Blemish Passenger  
LT - Light Truck  

--------------------------------------------------------------------------------


205 - Width in millimeters of tire's tread.  

--------------------------------------------------------------------------------


60 - Aspect Ratio - Percentage of tread width that equals the sidewall height.  

--------------------------------------------------------------------------------


R - Radial  

The letter "R" can also include the following:  

HR - H=Speed Rating  
VR - V=Speed Rating  
ZR - Z=Speed Rating  

--------------------------------------------------------------------------------


15 - Rim diameter in inches.  

--------------------------------------------------------------------------------


OWL - Outlined White Lettering  

Other letter combinations include:  

RWL - Raised White Letters  
W - Whitewall  
B - Blackwall  
ORWL - Outlined Raised White Letters  
WW - White Wall  
BW - Black Wall  

--------------------------------------------------------------------------------


Tires can also be listed as:  
205/60R-15 93H  

93H - 93 Load Index, H Speed Rating  

--------------------------------------------------------------------------------


Light Truck (LT) sizes can
include a letter at the end of the size.  

LT265/75R-16/C  

C - Load Range


> > > > >    1995 Z26 with 82k     > > > >      LG8 3100  ÃƒÆ’ƒÆ’ƒâ€šÃ‚   
Canada
Registered User
Posts: 141
Joined: Sat Feb 23, 2002 12:59 pm
Location: Elkhart, Iowa
Contact:

Tire sizes breakdown

Post by Canada »

Here's a good link to easily figure the difference between tire sizes.

http://www.miata.net/garage/tirecalc.html



-2007 Saturn Sky Redline
-2007 Chevrolet Silverado Classic 2500HD
-2006 Chevrolet Impala SS
-1996 Chevrolet Camaro Z28
-1996 Chevrolet Beretta
Guest

Tire sizes breakdown

Post by Guest »

according to that calculator we can put 205/30/ R20 on
DAMMMMMMM!!!!!!


Post Reply