So I would like to go from 245/75/16 to 265/70/16 on my truck from my measurements there Is little size difference esp the outside diamater. The question is will I have to change the spair tire to match the new size? My fear is it could mess up the ABS or traction control if I had to use the spair tire? Or in this case is the size difference so close that it will not matter?
Upgrade size do I change spair?
- Thread starter Camprunner
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Originally Posted By: Camprunner
So I would like to go from 245/75/16 to 265/70/16 on my truck from my measurements there Is little size difference esp the outside diamater. The question is will I have to change the spair tire to match the new size? My fear is it could mess up the ABS or traction control if I had to use the spair tire? Or in this case is the size difference so close that it will not matter?
If your spare wheel matches your other wheels, then I would change the spare as well and include it in your rotation.
If your spare wheel does not match your other wheels, I would leave it alone and only use it in an emergency.
HTH
So I would like to go from 245/75/16 to 265/70/16 on my truck from my measurements there Is little size difference esp the outside diamater. The question is will I have to change the spair tire to match the new size? My fear is it could mess up the ABS or traction control if I had to use the spair tire? Or in this case is the size difference so close that it will not matter?
If your spare wheel matches your other wheels, then I would change the spare as well and include it in your rotation.
If your spare wheel does not match your other wheels, I would leave it alone and only use it in an emergency.
HTH
Most cars these days come with different size spare straight from the factory. As long as the overall diameter is the same as the rest of the wheels, it is not a problem for temporary use.
According to here: http://www.tacomaworld.com/forum/tirecalc.php?tires=245-75r16-265-70r16
The OD is only .5% different. Not enough to matter. Like the other guys said, chances are, you have a donut spare now and the change is minimal. If you have a full sized spare, I would get a 5th tire and add that into the rotation mix.
The OD is only .5% different. Not enough to matter. Like the other guys said, chances are, you have a donut spare now and the change is minimal. If you have a full sized spare, I would get a 5th tire and add that into the rotation mix.
Originally Posted By: Quattro Pete
As long as the overall diameter is the same as the rest of the wheels, it is not a problem for temporary use.
Yep. The O.D. and the load capacity matter the most for a spare, and you're good in both those regards with your sizes.
How many of us check the air pressure in our spare occasionally?
As long as the overall diameter is the same as the rest of the wheels, it is not a problem for temporary use.
Yep. The O.D. and the load capacity matter the most for a spare, and you're good in both those regards with your sizes.
How many of us check the air pressure in our spare occasionally?
Originally Posted By: Ken2
. . . How many of us check the air pressure in our spare occasionally?
Especially since so many cars today have a compact spare, and it needs to be set to a higher pressure than the other tires. My regular tires call for 33 lbs., but the compact calls for 60!
. . . How many of us check the air pressure in our spare occasionally?
Especially since so many cars today have a compact spare, and it needs to be set to a higher pressure than the other tires. My regular tires call for 33 lbs., but the compact calls for 60!
Originally Posted By: Ken2
How many of us check the air pressure in our spare occasionally?
I do it about once a year or so.
But the way the industry is going, pretty soon you won't have to as you'll either have a collapsible spare that will have to be inflated upon removal from the trunk anyway, or you'll have no spare at all and will have to rely on RFTs.
How many of us check the air pressure in our spare occasionally?
I do it about once a year or so.
But the way the industry is going, pretty soon you won't have to as you'll either have a collapsible spare that will have to be inflated upon removal from the trunk anyway, or you'll have no spare at all and will have to rely on RFTs.
Originally Posted By: Benzadmiral
Originally Posted By: Ken2
. . . How many of us check the air pressure in our spare occasionally?
Especially since so many cars today have a compact spare, and it needs to be set to a higher pressure than the other tires. My regular tires call for 33 lbs., but the compact calls for 60!
I usually check mine on a monthly basis.
Originally Posted By: Ken2
. . . How many of us check the air pressure in our spare occasionally?
Especially since so many cars today have a compact spare, and it needs to be set to a higher pressure than the other tires. My regular tires call for 33 lbs., but the compact calls for 60!
I usually check mine on a monthly basis.
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