What does this mean

[jobar]

I feel stupid for asking this but what does these numbers mean? P225/70 R14 I didn't see anything in the tech libary about it.

 

[7.5L_STX]

P is for passenger tire I Think,,,225 is tire size, 70 is tire width and R is radial i believe...14 would be rim size

 

[jobar]

I wasnt sure about the P for passenger, becausae that number came off my front, left, driver side.

225 is that like a 27 inch tire.

 

[Gotta_gofast]

P is for passenger tire I Think,,,225 is tire size, 70 is tire width and R is radial i believe...14 would be rim size

You are right about what the "P" stands for. But 225 is the tires section width in millimeters. 70 stands for th aspect ratio, meaning that the distance from the rim to the tread is 70% of the width. So, 70% of 225 mm is 157.5 mm. The R is raidal and 14 designates the diameter of the rim.

 

[Gotta_gofast]

I wasnt sure about the P for passenger, becausae that number came off my front, left, driver side.

225 is that like a 27 inch tire.

70% of 225 is 157.5

1 mm is equal to 0.0393700787 inch

So, 157.5 x 0.0393700787 = 6.2 inches

The radius of the rim is 7 inches

7 inches + 6.2 inches = 13.2 inches

If 13.2 inches is our radius, then the diameter is 26.4 inches

Your tire's height is aprox. 26.4 inches tall

 

[jobar]

I guessed at that one, and was .6 off.

 

[Gotta_gofast]

Not to shabby for a guess! lol

Edit: Does that answer your question?

 

[Mutant Pony]

Good job Gotta_gofast!
I read tire sizes explained wrong so many times it is refreshing to actually hear them explained right.

 

[jobar]

Yes, that does answer my question. Thank you.

 

[Gotta_gofast]

Good job Gotta_gofast!
I read tire sizes explained wrong so many times it is refreshing to actually hear them explained right.

I know, its sad really. The metric system is just as easy (if not easier) to understand and work with as the SAE system we use.

 

[Hahnsb2]

I know, its sad really. The metric system is just as easy (if not easier) to understand and work with as the SAE system we use.

Not when it comes to tires sizes, what's easier to understand the 31-10.50-15?

 

[Gotta_gofast]

Well I mean in general.

It is an odd way of measuring a tire. But with decimals of ten conversion is really simple. It really is confusing for us ranger guys because Ford really didn't know what to do. Some parts are metric and some are standard. Hmmm, keeps us smart I guess.

 

[jobar]

Got another question for ya. If I wanted to go up another tire size from that 26.4 you mentioned eariler, what would the new numbers be? Its kind of confusing.


I like the 31-10.50-15 mentioned eariler, eaiser to understand.

 

[98ranger4x4]

Got another question for ya. If I wanted to go up another tire size from that 26.4 you mentioned eariler, what would the new numbers be? Its kind of confusing.


I like the 31-10.50-15 mentioned eariler, eaiser to understand.

the next size up would be either a 235/70 14 or a 225/75 14. both will be a little bit taller.

 

[Gotta_gofast]

A 235/70-R14 will be about 27" tall.

A 225/75-R14 will be about 27 1/4 " tall.

If you would like a 31-10.5-15 you will need to pick up some 15" rims. But 31" tall tires might rub with a 2wd suspension. If you go to a junkyard, you could pick up some stock ranger or explorer 15" rims. This will give you several more options. By doing so, you can run a 235/70-R15 which would be about 28" tall or a 235/75-R15 which would be 28.9" tall. Some 4x4 trucks use 265/70-R15 (like mine) which is about 29.6" tall and 10 inches wide.