Thread: Mixing tyre types

I would like to know why the posters seem to be obsessing about space savers? I know I first brought it up but it is pretty obvious that with an electronic 4WD the space saver should be the same size whereas with many other cars they are not and has been pointed out even an AWD.

It is of course desirable that a space saver should be the same size but remember they are designed for on highway for the lowest common denominator. Maybe Land Rover decided that it was better to take up more space than to face litigation in the USA where some lawyer could "prove" a space saver was to blame.

If you were stuck in the desert with only a second spare say a camper trailer tyre would you care?

Wouldn't you give it a go and maybe pull the ABS fuse if the car complained?

Why has the thread gone off on a space saver tangent when the post is about different size full sized tyres?
I am doing what I posted and I now sign off
Regards Philip A

Originally Posted by PhilipA

Why has the thread gone off on a space saver tangent when the post is about different size full sized tyres?
I am doing what I posted and I now sign off
Regards Philip A

Because the use of smaller spacesavers in some vehicles is an extreme example of the use of different diameter wheels and types and highlights that the question of using marginally different size and types of tyres may not be as much an issue as some people think.

On my RRS I drove from Melbourne to Canberra with three 255/60 R18s and one 255/55 R18 (on the back) and had no issues with the systems - only a small difference but nevertheless a difference.

Garry

Originally Posted by PhilipA

If you were stuck in the desert with only a second spare say a camper trailer tyre would you care?

Wouldn't you give it a go and maybe pull the ABS fuse if the car complained?

Because the above may be a fair point for a D2, where the centre diff lock is manually activated. But for a D3/D4, the lock will be triggered by the vehicle, moreso if the tyres are of differing rolling diameter. And of course, you can't pull the fuse for the ABS/TC.

So for any wheel (spacesaver or otherwise), it should be approx the same rolling diameter. That's why

Of course, in an emergency, one will be tempted to try anything.

Cheers,

Gordon