a tyre question

[gingz]

Hi Guys,

I bought a Puma with 20,000 Kms with the Goodyear Wranglers.

Now the question I have is about rotating the tyres.

The previous owner never rotated the tyres for I have four on the car with 20,000 Kms and a brand new one on the back.

I measured the tread the new one had tread depth of 14mm and the used has tread depth of 9mm.

It is still possible for me to bring the new tyre into a rotation or would I be better off buying another new tyre and installing two new tyres and then having a rotation with 6 tyres?

Cheers for the help

Gingz

[Tombie]

I wouldn't... Not now.

[Tombie]

Just FYI - I will never rotate Tyres across axles only front to back.

This renders the spare partially useless.

I just throw the spare out after 5 years and start again.

[FeatherWeightDriver]

The idea is not to have different rolling diameters across axles but also between axles. Basically you want all tyres in the rotation to have roughly the same tread.

Having a spare with markedly different tread depth to your running tyres is not ideal - been there My preference in your situation would be to run a 4 tyre rotation until you need to replace, and then get 5 new tyres and run a 5 tyre rotation.

Just FYI - I will never rotate Tyres across axles only front to back.

Hmm interesting - what's your reasoning on that particular rotation pattern? Not challenging, just curious

I currently use the last one in this picture:

[Tombie]

I'm not a fan of running a Radial tyre one direction and then the other.

If I ever had need to swap sides I would remove from rim and flip the tyre first.

[Yorkshire_Jon]

I'm not a fan of running a Radial tyre one direction and then the other.

If I ever had need to swap sides I would remove from rim and flip the tyre first.

Out of interest Tombie, why?

Sent using Forum Runner

[vnx205]

Some tyres have directional tread.

In the early days of radial tyres, there were reports of tread separation when the direction of rotation was reversed.

I don't know if it is still considered to be an issue.

[Samblers]

Do a search on my previous recent posts and i asked exactly the same Q - except mine has the General Grabbers and the mileage was 60,000km

I rotated the un-used spare in and havent noticed any difference

Sam

[Tombie]

Out of interest Tombie, why?

Sent using Forum Runner

My opinion (& that of a few people I know) is that the belts are 'aged' by running in one direction.

Turning them around and running the opposite rotation can make the belts 'flex' in a manner they weren't bedded in on.

I look at it like running a 4wd stock for 10,000km and then lifting it.
The unis etc are all used to running at one static height and have bedded in.
When lifted it often induces a harmonic that wasn't there before, whereas if lifted from new this doesn't happen.

In the case of a tyre, I have rotated Tyres and had this similar trait before and will no longer do it.

Drive to Steer and vice versa is my limit.

Although I rarely, if ever, bother doing that either.

[roverrescue]

Im sure its just because Im tight... but I might just be able to now say "cos Mike does it this way!"

I buy two at a time. They go on front, fronts to rear, rears to spares or trailers.
Once you have it in sync only have to buy a pair of tyres every couple of years which makes more sense to me than buying 6 tyres all at once.
On the dirt up here the rears flog out much faster than the fronts. As they get down to "trailer tyre" stage its time to buy some new ones for the front. I guess also I like to keep a fair bit of tread on the landy... no point running them all down to 4mm of tread depth just because you can? traction at those low depths is abysmal.

I guess you need to be happy with the size/style of rubber and it needs to be available over a long period of time.

Each to there own. But for the original poster. If the rears are are at 9mm in not too long a time I would buy one new tyre, chuck it and the spare onto the front. Shuffle the fronts to the back and voila you now have two usuable spares (9mm tread).

S

S