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Vehicle tire size?

Posted on 1/18/16 at 2:54 pm
Posted by Pas gagne
Member since May 2015
185 posts
Posted on 1/18/16 at 2:54 pm
Gmc Sierra. Stock tires were 245/65/17. I've put 265/65/17 on it. Found a great deal on some 235/65/17 tires. Will these fit? Ride difference?
Posted by bayoudude
Member since Dec 2007
24954 posts
Posted on 1/18/16 at 2:55 pm to
Those are smaller than stock
Posted by Clyde Tipton
Planet Earth
Member since Dec 2007
38732 posts
Posted on 1/18/16 at 2:58 pm to
Posted by ForeverLSU02
Albany
Member since Jun 2007
52147 posts
Posted on 1/18/16 at 2:58 pm to
Posted by Chad504boy
4 posts
Member since Feb 2005
166246 posts
Posted on 1/18/16 at 3:05 pm to
Posted by meauxjeaux2
watson
Member since Oct 2007
60283 posts
Posted on 1/18/16 at 3:07 pm to
i've got 275's i put on my 08 Sierra. They fit fine with no rubbing
Posted by MrSmith
Member since Sep 2009
8311 posts
Posted on 1/18/16 at 3:11 pm to
quote:

i've got 275's i put on my 08 Sierra. They fit fine with no rubbing

And that's relevant... how?
Posted by meauxjeaux2
watson
Member since Oct 2007
60283 posts
Posted on 1/18/16 at 3:13 pm to
quote:

And that's relevant... how?
just saw it said 235. My bad
Posted by Pas gagne
Member since May 2015
185 posts
Posted on 1/18/16 at 3:14 pm to
Yeah I know but 10 mm difference in width. Everything else same. Didn't know if there was a tire too skinny.
Posted by bayoudude
Member since Dec 2007
24954 posts
Posted on 1/18/16 at 3:20 pm to
It will be shorter as well since the aspect ratio is the same. They will be 9.25" wide and 29" tall on a 17" wheel. They won't be but 3/8" narrower than stock and 1/2" shorter. Honestly you won't really notice a difference from stock but i have always been one to stuff the largest tire i can without rubbing on a truck.
Posted by MrSmith
Member since Sep 2009
8311 posts
Posted on 1/18/16 at 3:44 pm to
I was wondering
Posted by Power-Dome
Member since Nov 2012
1112 posts
Posted on 1/18/16 at 3:49 pm to
For 265 down to 235, would they not be 30mm narrower? That's a little over an inch
Posted by Chad504boy
4 posts
Member since Feb 2005
166246 posts
Posted on 1/18/16 at 3:54 pm to
he's talking about "stock" size to 235... which is .46" diameter less and about .42" width less.
Posted by Pas gagne
Member since May 2015
185 posts
Posted on 1/18/16 at 4:07 pm to
Thanks guys. I wasn't even considering diameter as well.
Posted by LSUengr
Baton Rouge
Member since Sep 2005
2332 posts
Posted on 1/18/16 at 4:10 pm to
Posted by Napoleon
Kenna
Member since Dec 2007
69071 posts
Posted on 1/18/16 at 4:12 pm to
First number = width in milimeters

second number the percentage of the width in height.
(245/65 would be 159.25mm high)

third number = wheel diameter in inches

So a 265/65/17 has a wheel that is 10.34 inches wide, 6.7 inches tall and on 17 inch rims.
(so roughly 30.44" total size of rim and tire x 10.34 wide)

Once you know this, figuring out tires is easy from now on.

(also inch = mm x 0.039)
This post was edited on 1/18/16 at 4:14 pm
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