Tire help!?!
Thread Starter
|
New User
Joined: Jul 2011
Posts: 14
Likes: 0
Tire help!?!
Okay i have a 89 f250...i know it will clear a 35 inch tire the way it sits now...i had bfg all terrians on it that were 235/85/r16s. i liked them but they wore down and now its time for new ones... i just bought some alminum rims with tires on it that are cooper discovers 265/75/16... both tires seem about 30 inches tall.. i dont really know what the numbers mean...i want to run a tire thats 32 or 33 inches that will fit on that rim...what size would that be? and anyone got any input on what kind of tire? i like to do some weekend offroading but not to much. was looking at the discoveries or bfgs.. want to keep it kind of cheap
Elder User
Joined: Mar 2011
Posts: 923
Likes: 1
From: North Central MA
LT285/75R16 is a 33
in 85 series LT255/85R16 is a 33.5
LT235/85R16 LT265/75R16 both 31.5's
Metrics suck but just be happy English is the international language and we dont first need a french lesson to read the equations!
Stole this "how it works" for you ....
Modern metric tire dimensions Example...185/60R14 85H or 185/60HR14
The first number is the width of the tire in millimeters, measured from sidewall to sidewall. To convert to inches, divide by 25.4 In the example above, the width is 185mm or 7.28".
The second number is the aspect ratio. This is a ratio of sidewall height to width. In the example above, the tire is 7.28" wide, multiply that by the aspect ratio to find the height of one sidewall. In this case, 185x0.60=111mm or 7.28"x0.60=4.36".
The last number is the diameter of the wheel in inches.
To figure the outside diameter of a tire, take the sidewall height and multiply by 2,(remember that the diameter is made up of 2 sidewalls, the one above the wheel, and the one below the wheel) and add the diameter of the wheel to get your answer.
Example...185/60R14 85H or 185/60HR14
185mm x .60=111mm x 2=222mm + 355.6mm(14")= 577.6mm or 22.74"
in 85 series LT255/85R16 is a 33.5
LT235/85R16 LT265/75R16 both 31.5's
Metrics suck but just be happy English is the international language and we dont first need a french lesson to read the equations!
Stole this "how it works" for you ....
Modern metric tire dimensions Example...185/60R14 85H or 185/60HR14
The first number is the width of the tire in millimeters, measured from sidewall to sidewall. To convert to inches, divide by 25.4 In the example above, the width is 185mm or 7.28".
The second number is the aspect ratio. This is a ratio of sidewall height to width. In the example above, the tire is 7.28" wide, multiply that by the aspect ratio to find the height of one sidewall. In this case, 185x0.60=111mm or 7.28"x0.60=4.36".
The last number is the diameter of the wheel in inches.
To figure the outside diameter of a tire, take the sidewall height and multiply by 2,(remember that the diameter is made up of 2 sidewalls, the one above the wheel, and the one below the wheel) and add the diameter of the wheel to get your answer.
Example...185/60R14 85H or 185/60HR14
185mm x .60=111mm x 2=222mm + 355.6mm(14")= 577.6mm or 22.74"
The village idiot.
Joined: Feb 2010
Posts: 1,126
Likes: 1
From: Southern WV
Good post Bankrupter.
Here's a simple conversion tool if your too lazy to break out the calculator or pen and paper.
OnlineConversion.com - Tire Size Conversion
There is a better one that tells you height, width, sidewall, etc but I can't find it right off.
EDIT: Heres a better one. http://www.therangerstation.com/tech...nch_Tires.html
Here's a simple conversion tool if your too lazy to break out the calculator or pen and paper.
OnlineConversion.com - Tire Size Conversion
There is a better one that tells you height, width, sidewall, etc but I can't find it right off.
EDIT: Heres a better one. http://www.therangerstation.com/tech...nch_Tires.html
Senior User
Joined: Aug 2010
Posts: 235
Likes: 0
From: Beatrice, NE
I would suggest 265/75R16 or 285/75R16, depending on the rim width. 265 is a good size because they're easy to find, fit well on a 7" to 8" width rim and can be found at discount prices compared to other sizes (because they're so popular). The 235/85's are usually all more expensive due to the higher load carrying capacity (load range E). You can usually find 265/75's in load range C or D, unless of course you want E.
As for the brand, I hear good things about the General Grabber AT2 and the Khumo Road Venture AT. They are a good looking tires, get good reviews and are moderately priced compared to the top-tier brands.
As for the brand, I hear good things about the General Grabber AT2 and the Khumo Road Venture AT. They are a good looking tires, get good reviews and are moderately priced compared to the top-tier brands.
The village idiot.
Joined: Feb 2010
Posts: 1,126
Likes: 1
From: Southern WV
I would suggest 265/75R16 or 285/75R16, depending on the rim width. 265 is a good size because they're easy to find, fit well on a 7" to 8" width rim and can be found at discount prices compared to other sizes (because they're so popular). The 235/85's are usually all more expensive due to the higher load carrying capacity (load range E). You can usually find 265/75's in load range C or D, unless of course you want E.
As for the brand, I hear good things about the General Grabber AT2 and the Khumo Road Venture AT. They are a good looking tires, get good reviews and are moderately priced compared to the top-tier brands.
As for the brand, I hear good things about the General Grabber AT2 and the Khumo Road Venture AT. They are a good looking tires, get good reviews and are moderately priced compared to the top-tier brands.
Mine is 4wd. Not sure if the OP has 4wd or not unless I missed it.
Have you used either of those brands? I have considered the general tires but I wanted some opinions on them.
I personally would say stay away from Uniroyal Laredos. Worthless tires IMO in all but dry conditions. They have lasted awhile but wet and snow traction is horrible.
Good info in your post none the less.
Thread
Thread Starter
Forum
Replies
Last Post
schapman
Brakes, Steering, Suspension, Tires, & Wheels
4
Nov 19, 2003 12:27 AM
fatdaddy
Brakes, Steering, Suspension, Tires, & Wheels
6
Feb 11, 2002 04:21 PM
