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Going from 265/65R17 to 245/75R17 any thoughts?

Posted: Mon May 13, 2019 9:55 pm
by itmustbeslim
Hey guys, ya'll are much smarter than me so I wanted to ask. I have an opportunity to get a GREAT deal on some Michelin LTX A/T 2 tires but they are load range E and 245/75R17, and a whopping 47 pounds each (as compared to the average stock tire weight of 37 pounds)!

I am not worried about the height difference, I am more concerned with the weight, width, and load range.

What can I expect in making this change? Should I avoid doing it? Will I see an MPG drop?

Car is a grocery getter for your information. We live in northern UT so plenty of snow during the winter and only need 4low 2-3 times per year max while camping so off road work is very mild.

Thanks for your help!

Posted: Mon May 20, 2019 3:47 am
by palmerwmd
The weight should give u a slight mpg drop... the extra inch diameter a slight rise in ground clearance.


You are going from a 30.5 inch tire to a 31.5 inch tire
Your speedo will be off by 3-3.5%

In the snow the slimmer tire will actually be an advantage.

You may lose some tranction in fast curves thougugh.

To put this into perspective a 215 width tire used to be considered a wide tire a mere 20 yrs ago.
A 245 was an ultrawide on sports cars only..

Posted: Mon May 20, 2019 10:56 am
by ssobol
You'll lose some mpg to increased friction with the road surface too.

For max mpg from the tires you need to use bicycle style wheels and tires.

Posted: Wed May 22, 2019 8:29 am
by itmustbeslim
Awesome! Thanks guys

Just out of curiosity, what tires are ya'll running?

Posted: Wed May 22, 2019 10:23 am
by palmerwmd
265/65-R17 :)

Posted: Wed May 22, 2019 10:25 am
by palmerwmd
PS: There is a Pathy of our gen that comes with stock 245s BTW:
245/75R16

So the slimmer width of your tire should not be a deal breaker

Posted: Wed May 29, 2019 5:28 pm
by SuperTom
Yeah I just picked up an 05 and it has 245/75/16 LT tires on it. Just Ordered new wheels American racing AR933 (18x8.5 +18 ) and Falken Wildpeaks 265/70/18 which wont be much wider but will be 2" taller

Posted: Sun Jun 09, 2019 10:53 pm
by palmerwmd
SuperTom wrote:Yeah I just picked up an 05 and it has 245/75/16 LT tires on it. Just Ordered new wheels American racing AR933 (18x8.5 +18 ) and Falken Wildpeaks 265/70/18 which wont be much wider but will be 2" taller
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