Tire "offsets"

[Art-n-Marge]

I currently have LT265/70R17 tires and 17" wheels on my 2006 F-250, but I don't now the width of the wheel. I will be changing to LT275/70R18 tires and 18x8 wheels to support some suspension work I am planning to do. One of the questions I have been asked as I price wheels is "What offset are you looking for?". I know the 18x8 part, but don't know what's the offset.

I am not sure what this is or how to tell what I currently have or will need when I get larger wheels.

Can anyone help?

[8.1al]

The offset is measured on the back of the wheel. place a straightedge across the rim and measure down to the center, this is the offset

[LonnieB]

Art, your original stock wheels are 17"x7.5" with a +35 offset.

Try this link www.TireBuyer.com

It will take you to a web site called Envisio. For now it is about wheels and applications. In the next few weeks it will be both tires and wheels. American Tire Distributors/TirePros is launching the site to help independent dealers such as myself, compete in the on-line marketplace.

This is not a sales pitch. I am simply giving you another tool to assist you in your quest.

[Tom S.]

Art, when you buy your new wheels, make sure they are weight rated for the load you will be carrying! Many aftermarket wheels look pretty but don't have the weight capacity. Ask for it in writing just in case you ever have a wheel failure.

[Emmel]

And don't forget your spare. On a 4x4 you never want to use a different size tire on a drive axle.

[Art-n-Marge]

I am shopping for 5 wheels and 5 tires to support the weight rating and air pressures I need. I am looking for function first, application a very close second and looks are a distant third. I just don't know what offest to ask for yet.

Thanks to Lonnie I now know what I have (17x7.5, offset of +35) but haven't finished researching enough to understand what is needed for the new wheels for these new tires.

Thanks for the advice and information. It all works toward my needs.

[PSFORD99]

quote:Originally posted by Art-n-Marge

I am shopping for 5 wheels and 5 tires to support the weight rating and air pressures I need. I am looking for function first, application a very close second and looks are a distant third. I just don't know what offest to ask for yet.

Thanks to Lonnie I now know what I have (17x7.5, offset of +35) but haven't finished researching enough to understand what is needed for the new wheels for these new tires.

Thanks for the advice and information. It all works toward my needs.

I am not sure what you are trying to do, but I think you are looking to increase your load rating. Heres what I did , It worked out well for me. I went to a 18x9 Pro comp wheel rated at 3500 lbs ,and a 285/65/18 Bf goodrich E rated tire rated at 3640 @ 80 psi. The 285 is slightly bigger than the 265 stock, but not nearly like the 35" tires I was running before. Big and tall tires don't match well with towing. The only thing different I would have done was get the new Michelin AT/2, I had my choice, but I have run the ta's for a long time with good success. The Michelins are a little less aggressive on the tread pattern.

[Art-n-Marge]

I am trying to do pretty much what you describe. Go to a larger wheel and tire for increased weight rating. My current wheels and all 17" tires (currently at 265/70R17) do not go to 3500lbs which I need to improve my weight rating (amongst other things I am working on).

Believe it or not, the Michelin is pricing out lower here than I thought, so I am seeking 275/70R18 on 18x8 wheels - smaller than what you have, but larger than what I have now and meets my weight requirements. I am okay with the Michelin A/T2 pattern because of how and where I drive.

Your information definitely helps with what I am doing. Your configuration looks like it is a much more agressive solution. Very nice.

[Tincup703]

You could allways go up to a 19.5" tire and rim. You can get G and H rated tires in 19.5" and they will fit on your truck but are expensive! Take a look at this place:
www.ricksontruck.com