So confused about tires.....
JK Super Freak
Joined: Oct 2010
Posts: 1,350
Likes: 3
From: MD
My buddy drives about the same as you. He went with 265/70r16 BFG ATs(32") and they last forever as well as tear snow up. With 3.21 gearing he's still managing 17mpg but 6th is only good on flat roads.
JK Jedi
Joined: Oct 2007
Posts: 4,730
Likes: 3
From: BC
A good read for newbies:
https://www.jk-forum.com/forums/show...ery-Newbie-Has
One A/T that worked well with good wear was the Dick Cepek FC II's. Aggressive looking A/T.
The tire sizes...just pick a tire you like and google the tire spec table of that tire. Most tire spec columns will have the diameter and width of that specific tire and load rating etc.
https://www.jk-forum.com/forums/show...ery-Newbie-Has
One A/T that worked well with good wear was the Dick Cepek FC II's. Aggressive looking A/T.
The tire sizes...just pick a tire you like and google the tire spec table of that tire. Most tire spec columns will have the diameter and width of that specific tire and load rating etc.
JK Freak
Joined: May 2009
Posts: 829
Likes: 1
From: Burbank, CA
Here is a little help with figuring out tire size. I copied it from another thread I posted it in so just change the numbers to fit your needs. It's handy to know how to come up with these numbers when you see a tire you like and want to know the actual size.
305/70/16
12" wide
32.8" diameter
Heres how you get that number:
305 =section width (tire width)
70 =sidewall aspect ratio (sidewall height)
16 =wheel diameter
First, divide 305 by 25.4 This converts millimeters to inches.
You get 12.007. Round to the nearest whole number. 12. Your tires width is 12 inches.
Now you need to figure out your sidewall height. On this tire, the sidewall height is "70%" of the width. Thats where the 70 comes from in 305/70/16.
To get this number, multiply 12 (tire width) by 0.7 (70%)
This gives you 8.4. Your sidewall height is 8.4 inches.
(if your sidewall height was 65, you would divide 12 by 0.65. this would give you "65%" of your tire width. 55 would be 0.55, 75 would be 0.75, etc)
Last, to get the overall diameter, multiply 8.4 by 2. (You must do this because you have to add the top sidewall and bottom sidewall.)
This gives you 16.8
All that is left is the wheel diameter. 16 inches. Add the total sidewall height (16.8) to the wheel diameter (16) and you get 32.8"
32.8 inches is your overall diameter
305/70/16
12" wide
32.8" diameter
Heres how you get that number:
305 =section width (tire width)
70 =sidewall aspect ratio (sidewall height)
16 =wheel diameter
First, divide 305 by 25.4 This converts millimeters to inches.
You get 12.007. Round to the nearest whole number. 12. Your tires width is 12 inches.
Now you need to figure out your sidewall height. On this tire, the sidewall height is "70%" of the width. Thats where the 70 comes from in 305/70/16.
To get this number, multiply 12 (tire width) by 0.7 (70%)
This gives you 8.4. Your sidewall height is 8.4 inches.
(if your sidewall height was 65, you would divide 12 by 0.65. this would give you "65%" of your tire width. 55 would be 0.55, 75 would be 0.75, etc)
Last, to get the overall diameter, multiply 8.4 by 2. (You must do this because you have to add the top sidewall and bottom sidewall.)
This gives you 16.8
All that is left is the wheel diameter. 16 inches. Add the total sidewall height (16.8) to the wheel diameter (16) and you get 32.8"
32.8 inches is your overall diameter
Anyway, here's how I do my quick conversion....
For a 305/70/16 tire,
Tire width = 305 x .03937 = 12.00785 in
Tire height = ( ( 12.00785 in x .70 ) x 2 ) + 16 = 32.81099 in
Round both those numbers, and you have a 33X12 tire.