Quick tyre question,again..........

Hi. I got me new tyres.
Smell lovely and fresh,and they are going on the rear.
But...
I read somewhere,that new tyres shouldn’t be fitted on the front,by that I mean,that if a pair of new tyres are bought ,that they should always be put on the rear and the old rear ones should be moved up to the front.( not that it matters in this case), as it can cause aqua planing,poor braking,etc,but I wondered if people did that?

 

No, I don't. I believe the thinking goes that worn tyres on the rear gives a tendency to oversteer and on the front understeer. The argument then goes along the lines of the 'average' driver can't cope with oversteer so it's better, somehow, to understeer off the road. In my view, the majority of the braking effort is on the front and that's where you want the grip of new tyres. But, hey, what do I know?

 

Dunno...

 

yes - this is the explanation

there are lots of youtube videos* where worn tyres on the rear, constant radius turn in the wet, the rear will let go first which for most drives would result in a lift off- spin/ crash where if it was the other way around the car would push wide (understeer) which is usually just corrected by backing off which is most people's natural reaction. I know its counter intuitive given that the fronts in most cars do all the "drive" and most of the braking so you'd think that more grip there would be best but no.

* having said that i suspect that all of the videos "demonstrating" this probably have fully brand new 8mm tread tyres on the front and completely bald knackered slicks on the rear

personally on my daily i rotate the tyres on my daily so they wear consistently, then i buy 4 tyres at the same time.. for the bay though its irrelevant for me as i have different sizes front and rear

 

and it doesn't go round corners in the first place.

 

What if it’s rear wheel drive ? Nah

 

That’s more ‘new shoes’.


It may apply to horses...

 

That’s my thoughts, as vw campers are heavier that end...obviously, it probably dosnt even apply to them unless fitted with a proformance engine, etc.

 

All that happens is the tyres are maybe a tiny bit less grippy for a few miles. Then their performance improves progressively up to somewhere around the legal wear limit on a dry road..
On the other hand, the aquaplaning risk increases with wear as your tyre loses capacity to pump water sideways as the sipes get shallower - but I doubt you can get a bus going fast enough in stupid conditions to actually aquaplane- I found on the Bristol to Stafford leg of my drive in a storm to the final Dubfreeze, that if you run fast into deep water, the bus slows down very quickly. The scare is the drag from hitting a deep puddle only one side grabbing the wheel from your hands..


If you are chucking your van around really hard and the road is a bit wet, the front end does seem to go on by itself. The backend is very sticky . You need some snow or gravel to really have fun...

 

Used to love getting the back end out on my lowered 1700. Great fun.

 

Having most of the weight over the rear wheels helps a lot with traction
Years ago I had the back end of my van step out driving on snow
Drifting something that size is quite scary

 

Thousands of brand new cars/vans/any other vehicle all fitted with new tyres on all wheels and all seem to not have a major problem.

 

Brand new vehicles.
Don’t they always have a ‘running in period’?

 

I think they used to, I thought for the mechanical bits, but I don't know if they still do.

 

Exactly - it's a silly question...


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No such thing as a silly question,just people,that don’t ask to learn...

 

I would imagine that it covers tyres too,if your meant to keep the speed down,for the first 500 miles or so,just for safety precautions...

 

If you buy two tyres from Costco they won’t fit them on the front , no matter how much you protest.