How to decide size of tires? - Car Audio Classifieds!
Car Audio Classifieds!  

Go Back   Car Audio Classifieds! > The OT™ > General Automotive Chat

General Automotive Chat Discuss the latest auto news, ehancements that you would like to make to your vehicle or if something is broken, need advice on geting it fixed or anything about automobiles in general.


Notices

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 01-06-2009, 06:40 PM
aturcotte127317's Avatar
Veteran Member
 
Activity Longevity
0/20 20/20
Today Posts
0/11 sssss3613
Location: Milwaukee, WI
Age: 28
Thanks: 5
Thanked 5 Times in 4 Posts
iTrader: (11)
Feedback Score: 11 reviews
Default How to decide size of tires?

so the tires on my rims now are 225/45/(ZR) 17 i am not sure what the ZR is maybe someone can help me with that too? but my question is, if i want the tires to be more low profile, which of the numbers do i change?? (i am guessign the 45?) please any and all help, thanks!
__________________
147.5 sealed on dash
149.0 in kick

and climbing
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


2 12" 2010 Type Rs
or
1 15" DD 9915
Audison VRX 1.500
or
Sundown SAZ1500D
Crescendo 1000C4
Selenium and Vifa mids and highs
SHOK wire
-Team Bringin' The Bass- -Team Shok- -Team CACO-
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 01-06-2009, 06:43 PM
allout13's Avatar
Elite Member
 
Activity Longevity
0/20 20/20
Today Posts
0/11 ssssss822
Location: Georgia
Thanks: 0
Thanked 1 Time in 1 Post
iTrader: (3)
Feedback Score: 3 reviews
Default

yeah its the middle number that affects the profile
Reply With Quote Quick reply to this message
  #3  
Old 01-06-2009, 06:45 PM
SPY SPY is offline
Car audio classifieds, stereo sales, subwoofer amps mids classified caraudio, BANNED!!
 
Activity Longevity
0/20 20/20
Today Posts
0/11 ssss10192
Location: Upstate, NY
Thanks: 0
Thanked 26 Times in 23 Posts
iTrader: (93)
Feedback Score: 93 reviews
Default

Tires size

225/45/ZR17 =

Tire is 225mm wide

the height of the tire is 45% of the width

The tire is ZR speed rated, different letters mean the tire is safe for use at different top speeds.

17 = rim size.

When changing tire size you need to keep the overall diameter (rolling diameter) of the tire the same. If you want lower profile tires you need to get wider and shorter tires to keep the rolling diameter the same.

In your case I would sugges going to a 235/40/17. You might be able to get away with a 245/35/17 but you need to make sure you rim is wide enough to fit the tire.
__________________

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
/ CAAA Member #2 /
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
/
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message
 
  #4  
Old 01-06-2009, 06:53 PM
Elite Member
 
Activity Longevity
0/20 20/20
Today Posts
0/11 sssss1560
Location: Washington originally from Iowa 98315
Age: 30
Thanks: 8
Thanked 0 Times in 0 Posts
iTrader: (12)
Feedback Score: 12 reviews
Default

you make the tire wider?
Reply With Quote Quick reply to this message
  #5  
Old 01-06-2009, 06:55 PM
aturcotte127317's Avatar
Veteran Member
 
Activity Longevity
0/20 20/20
Today Posts
0/11 sssss3613
Location: Milwaukee, WI
Age: 28
Thanks: 5
Thanked 5 Times in 4 Posts
iTrader: (11)
Feedback Score: 11 reviews
Default

Quote:
Originally Posted by SPY View Post
Tires size

225/45/ZR17 =

Tire is 225mm wide

the height of the tire is 45% of the width

The tire is ZR speed rated, different letters mean the tire is safe for use at different top speeds.

17 = rim size.

When changing tire size you need to keep the overall diameter (rolling diameter) of the tire the same. If you want lower profile tires you need to get wider and shorter tires to keep the rolling diameter the same.

In your case I would sugges going to a 235/40/17. You might be able to get away with a 245/35/17 but you need to make sure you rim is wide enough to fit the tire.
yea im confused, to run 235/40 wouldnt i have to change the rim to a wider rim??
__________________
147.5 sealed on dash
149.0 in kick

and climbing
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


2 12" 2010 Type Rs
or
1 15" DD 9915
Audison VRX 1.500
or
Sundown SAZ1500D
Crescendo 1000C4
Selenium and Vifa mids and highs
SHOK wire
-Team Bringin' The Bass- -Team Shok- -Team CACO-
Reply With Quote Quick reply to this message
  #6  
Old 01-06-2009, 06:56 PM
SPY SPY is offline
Car audio classifieds, stereo sales, subwoofer amps mids classified caraudio, BANNED!!
 
Activity Longevity
0/20 20/20
Today Posts
0/11 ssss10192
Location: Upstate, NY
Thanks: 0
Thanked 26 Times in 23 Posts
iTrader: (93)
Feedback Score: 93 reviews
Default

yes, to keep the diameter the same you must make the tire wider to make the aspect ratio smaller.
__________________

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
/ CAAA Member #2 /
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
/
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message
  #7  
Old 01-06-2009, 06:58 PM
aturcotte127317's Avatar
Veteran Member
 
Activity Longevity
0/20 20/20
Today Posts
0/11 sssss3613
Location: Milwaukee, WI
Age: 28
Thanks: 5
Thanked 5 Times in 4 Posts
iTrader: (11)
Feedback Score: 11 reviews
Default

but for a wider tire, wouldn't i need a wider rim?
__________________
147.5 sealed on dash
149.0 in kick

and climbing
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


2 12" 2010 Type Rs
or
1 15" DD 9915
Audison VRX 1.500
or
Sundown SAZ1500D
Crescendo 1000C4
Selenium and Vifa mids and highs
SHOK wire
-Team Bringin' The Bass- -Team Shok- -Team CACO-
Reply With Quote Quick reply to this message
  #8  
Old 01-06-2009, 07:01 PM
SPY SPY is offline
Car audio classifieds, stereo sales, subwoofer amps mids classified caraudio, BANNED!!
 
Activity Longevity
0/20 20/20
Today Posts
0/11 ssss10192
Location: Upstate, NY
Thanks: 0
Thanked 26 Times in 23 Posts
iTrader: (93)
Feedback Score: 93 reviews
Default

Quote:
Originally Posted by aturcotte127317 View Post
yea im confused, to run 235/40 wouldnt i have to change the rim to a wider rim??
depends on the size of your rim.

I run a 235/50/17 for summer tires and a 225/55/17 for snow tires, my rims are 17x7.5 and both size tires fit fine and have an almost identical rolling diameter.
__________________

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
/ CAAA Member #2 /
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
/
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message
  #9  
Old 01-06-2009, 07:02 PM
Elite Member
 
Activity Longevity
0/20 20/20
Today Posts
0/11 sssss1560
Location: Washington originally from Iowa 98315
Age: 30
Thanks: 8
Thanked 0 Times in 0 Posts
iTrader: (12)
Feedback Score: 12 reviews
Default

well thats cool you dont have to change your speedo twice a year
Reply With Quote Quick reply to this message
  #10  
Old 01-06-2009, 07:06 PM
aturcotte127317's Avatar
Veteran Member
 
Activity Longevity
0/20 20/20
Today Posts
0/11 sssss3613
Location: Milwaukee, WI
Age: 28
Thanks: 5
Thanked 5 Times in 4 Posts
iTrader: (11)
Feedback Score: 11 reviews
Default

alright i get it, but im just gonna stick with the 225/45 thanks guys!!!
__________________
147.5 sealed on dash
149.0 in kick

and climbing
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


2 12" 2010 Type Rs
or
1 15" DD 9915
Audison VRX 1.500
or
Sundown SAZ1500D
Crescendo 1000C4
Selenium and Vifa mids and highs
SHOK wire
-Team Bringin' The Bass- -Team Shok- -Team CACO-
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Car Audio Classifieds! forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Location
Where you live
Level of Car Audio Knowledge
What's your level of car audio?

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
WTT: Set of 18" CHROME Wheels & Tires danteBirosel Car Audio Trader (WTT) 0 12-01-2008 06:27 PM
Increase your brain size, literally Cheesemind Off Topic Chat 2 11-02-2008 08:16 AM
24" DUB wheel/tires Ricoshay Miscellaneous Stuff For Sale 4 10-01-2008 09:50 AM
WTB: 18's or 19's +40 or less, 5x114.3 w/tires and possible trade for.. nismos14 Miscellaneous Stuff For Sale 8 09-19-2008 10:57 AM

» Amps
A/d/s/
Advent
Alphasonik
Alpine
American Bass
ARC Audio
Atomic
Audio Art
Audio Gods
Audiobahn
Audiocontrol
Audiopipe
Audison
Aura
Autotek
Avionixx
Bazooka
Beyma
Blaupunkt
Boss
Boston Acoustics
Bravox
Cadence
Cascade (CAE)
CDT Audio
Cerwin Vega
Clarion
Clif Designs
Concept
Coustic
Critical Mass
Crossfire
Crunch
DB Drive
DC Audio
DC Power
DEI
Denon
Diabolo
Diamond
Digital Designs
Directed
DLS
Dual
DYnamat
Dynaudio
Earthquake
Eclipse
Elemental Designs
ESX
Eton
Farenheit
Fi Car Audio
Fix My Speaker
Focal
Fusion
Genesis
Ground Zero
Hafler
Helix
Hertz
Hifonics
Hushmat
Image Dynamics
Infinity
Interfire
JBL
Jensen
JL Audio
JVC
Kenwood
Kicker
Knu Konceptz
Kole Audio
Kove Audio
Lanzar
Lightning Audio
Linear Power
MA Audio
Magnat
Marantz
Massive Audio
MB Quart
McIntosh
Memphis
Metra
MMATS
Mobile Authority
Morel
MTX
Nakamichi
Niche Audio
O2 Audio
Ohio Generator
Optima
Orion
Oxygen Audio
OZ Audio
PG Audio
Phase Linear
Phoenix Gold
Pioneer
Polk
Power Acoustik
Powerbass
Powermaster
Precision Power
Profile
Pyle
Pyramid
RadioShack
Rainbow
Rampage
RE AUdio
Rockford Fosgate
Scanspeak
Scosche
Seas
Sony
soundstream
Sparkomatic
SPL Dynamics
Stinger
Sundown Audio
Swiss Audio
Targa
TC Sounds
TREO Engineering
TRU
Tsunami
Ultimate
US Acoustics
US Amps
Velodyne
Vifa
Viper
Visonik
Xtant
Zapco
Zed Audio
Powered by vBadvanced CMPS v3.2.3
Links
Amp Guts
amplifier, amp guts, ampguts, car audio classifieds, speakers and subs for sale with listings of 12 volt sound systems. Security systems for sale for aftermarket car audio equipment with amplifier and amps for sale
Car Audio Forum
car audio forum, moble audio, car stereo, wholesale car audio, 12 volt, with, amplifier, amp, subwoofer, sound quality, buy car audio, and sell automotive stereo systems for cars
Car Audio Sound Quality Forum
Sound QUality science based car audio forum, amplifier, subs and speaker design, fabrication help, sound systems forum, aftermarket car audio website for sound quality.
Car Stereo Forum
DIYMA car audio stereo forum for 12 volt car audio subwoofer and amplifier systems that have sound quality with wholesale car audio products.


All times are GMT -5. The time now is 09:01 PM.


Powered by vBulletin
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.6.0
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.