Different tyres sizes?????

[TwinsPoppa]

Originally Posted by JonbmwX5

ok so i used the website and its say the rev per miles on the 295/30/22 are 718
and the 285/35/22 are 697 so there is a difference.

the rolling radius for the 295 is 14.48 inch
and the radius for the 285 is 14.92 inch

so for future use if i go for different tyre brands, whats the variance you can have?

Ideally you want the same but try to be within 3-4 revs/mile max. Try to have the same tire brands too. Why would you want to use different tire brands?

[JonbmwX5]

the ones on the X are nexens, not a brand i know, i will replace two tyres with a better brand and then replace the nexens at a later date. thats the plan lol!

[jdstrickland]

To the guy that asked about the 285/45 and 255/55 combination. These are identical in over all diameter. One of them makes 693 revolutions per mile, the other makes 694. The 255 makes the extra revolution.

The overall diameter is 29.098 and 29.039, respectively. These are identical for any practical purpose. You have no worries about the drive train using these two sizes.

[jdstrickland]

And, to dot the i and cross the t, The 235/65x17 is also in there at 695 revs. per mile. All of these sizes are suitable for use at the same time on your car. That is, the spare can be used anywhere and will play well with the other three.

As with any spare, you will want to get the damaged tire repaired or replaced as soon as is practical.