How do you Read Tire Charts..? what does 235-40 mean? - RX7Club.com



How do you Read Tire Charts..? what does 235-40 mean?

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 07-01-05, 04:57 PM   #1
Senior Member
10 Year Member
Thread Starter
 

Join Date: Mar 2003
Location: Ca
Posts: 463
Red face How do you Read Tire Charts..? what does 235-40 mean?

245-35....vice versa... i just bout some new volk GT-U's which are 17X8 AND 18X11 .. I NEED SOME KNOWLEGE in picking out the right tires for my wheels.. im currently looking at the YOKOHAMA'S ES-100..
theone81 is offline   Reply With Quote
Old 07-01-05, 05:00 PM   #2
Mystical wings guide me~
5 Year Member
 
Kouta's Avatar
 

Join Date: Jun 2004
Location: Olympia, WA
Posts: 898
http://www.tirerack.com/tires/tirete....jsp?techid=46
Kouta is offline   Reply With Quote
Old 07-01-05, 05:19 PM   #3
Senior Member
10 Year Member
Thread Starter
 

Join Date: Mar 2003
Location: Ca
Posts: 463
18 Inch tires
235-40..?
245.35?
255.35?
365.35?
theone81 is offline   Reply With Quote
Old 07-01-05, 05:21 PM   #4
Senior Member
5 Year Member
 
Camrann's Avatar
 

Join Date: Feb 2005
Location: Fort worth, TX
Posts: 327
235 is the tread width and the 40 is the side wall height if im not mistaking
Camrann is offline   Reply With Quote
Old 07-01-05, 05:29 PM   #5
Senior Member
10 Year Member
 

Join Date: Aug 2003
Location: Twin Cities, MN
Posts: 319
OMG ive always wondered but i never wanted to ask because i was to embarassed.
Garoad is offline   Reply With Quote
Old 07-01-05, 05:40 PM   #6
Senior Member
5 Year Member
 
Camrann's Avatar
 

Join Date: Feb 2005
Location: Fort worth, TX
Posts: 327
lol its all good.
Camrann is offline   Reply With Quote
Old 07-01-05, 05:46 PM   #7
i am legendary
5 Year Member
 
ddub's Avatar
 

Join Date: Sep 2003
Location: Kirkland, WA
Posts: 8,478
Quote:
Originally Posted by Camrann
235 is the tread width and the 40 is the side wall height if im not mistaking
Kind of...

The 40 indicates that this tire size's sidewall height (from rim to tread) is 40% of its section width. The measurement is the tire's section height, and also referred to as the tire's series, profile or aspect ratio. The higher the number, the taller the sidewall; the lower the number, the lower the sidewall.

Taken from tirerack and changed the 50 to a 40 to be pertinent to this thread. Simply put, it's a ratio not an exact measurement like the width.
ddub is offline   Reply With Quote
Old 07-01-05, 05:46 PM   #8
(_8(|)
5 Year Member
 
88t2romad's Avatar
 

Join Date: Jul 2004
Location: Manhattan, Kansas
Posts: 2,035
235/40/18........the 235 is width in millimeteres of the tire, 40 is aspect ratio between sidewall and width, i.e. it means that the sidewall is 40% of the 235 width. And the 18 is the size rim it will fit on

*edit ddub beat me to it
88t2romad is offline   Reply With Quote
Old 07-01-05, 07:46 PM   #9
Moderator - Rotary Fool
10 Year Member
 
rynberg's Avatar
 

Join Date: Dec 2001
Location: San Lorenzo, California
Posts: 14,717
Quote:
Originally Posted by theone81
... i just bout some new volk GT-U's which are 17X8 AND 18X11 ..
Hope you have fender flares in the rear.....

I would post the offset of those wheels so we can how they are going to fit (or not)....
rynberg is offline   Reply With Quote
Old 07-02-05, 12:16 AM   #10
Thunder from downunder
10 Year Member
iTrader: (1)
 
aussiesmg's Avatar
 

Join Date: Mar 2001
Location: Convoy, Ohio, USA
Posts: 3,843
Keep in mind that your speedometer reads distance by the outside circumference of you wheel and tire combination, so if you change the diameter of the package your speedo will start telling you the wrong speed. Measure your stock rims and ensure your new package has the same diameter or have your speedometer recalibrated.
aussiesmg is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
[For Sale] FD RX7 stock wheels chrome set and regular pair $440 rotary#10 West For Sale/ Wanted/ Classifieds 7 03-16-16 03:41 PM
[For Sale] Stock FD Wheels w/ Falken FK452 Tires dvo West For Sale/ Wanted/ Classifieds 1 09-10-15 05:07 PM
Best Autocross tires for a 1981? Barrman New Member RX-7 Technical 2 09-08-15 04:25 PM
[For Sale] Free Evan's Coolant 3/4 gallon ericgrau West For Sale/ Wanted/ Classifieds 0 08-30-15 07:10 PM
My SA is Famous! mazdaverx713b 1st Generation Specific (1979-1985) 19 08-29-15 01:30 PM


Tags
18, 235, 23540, 2354018, 23560r18, 24535, 40, chart, mean, means, measurement, measurements, read, tire, tires

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 01:24 PM.


All content Copyright 2007 by Internet Brands, Inc.