new tyres on front or back

Currently reading:
new tyres on front or back

front back rear

  • front

    Votes: 55 50.0%
  • back

    Votes: 44 40.0%
  • dont matter

    Votes: 5 4.5%
  • you should driver better to prevent this happerning anyways

    Votes: 6 5.5%

  • Total voters
    110
New tyres on the back and part worns on the front, always.
I put a Civic Type R into a ploughed field on a rainy track day because the owner had done exactly the opposite and swapped the grippy tyres to the front and very worn to the back.
Front wheel drive cars need grip at the back.
 
Some interesting opinions on this one. I'm a college Lecturer in Motor Vehicle Studies and not many people consider me a 'retard'. It is generally considered within the industry that understeer is safer than oversteer. Most of the time extreme manouvering usually takes place under braking. Weight transfer forward on a car that understeers starts to bring the steering characteristics to a more neutral feel. Therefore with new tyres tending to have a greater slip angle than worn ones they will produce understeer on the front and oversteer on the rear. Also new tyres when produced have an oily/waxy coating on them that is a releasing agent to allow them to seperate from their moulds. This in damp conditions is extremely slippy. I once had a new tyre fitted to the rear of one of my cars and it rained later. As I travelled around a traffic island the back of the car started to drift with considerable ease. In my opinion, if you want safe, on the front. If you want exciting, put them on the back but don't say you weren't warned!
 
The AA say new tyres on the rear:

New tyres to the front or rear?

Check the car handbook first as some vehicle manufacturers give specific advice on this. If there is no information in the handbook, then it's good practice for safety to fit the best/newest tyres on the rear – in wet conditions, this favours understeer rather than oversteer. So if you have the front tyres renewed it's best to have the rear ones moved to the front and the new tyres fitted to the rear.
 
She was clearly exaggerating the "problem" to fit the message the powers that be above her want to project. You could see how bored she looked, especially as she had to "lose control". I'd rather a nosy car thanks. :)
Why should "the powers that be above her" care where you fit your tyres, just so long as you buy them from them? Overall, they'll still wear out at the same rate, and you'll still need to buy new tyres as often.

And why do the AA agree with "the powers that be above her"? Are they in on the scam?
 
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i say, new tyres on the front, because you are steering on the front wheels and also braking mostly on front wheels, i have a chevy day van, and bought 4 new tyres for the day van, 2 years later, the back still have plenty of tread and front are just about legal,
 
Why should "the powers that be above her" care where you fit your tyres, just so long as you buy them from them? Overall, they'll still wear out at the same rate, and you'll still need to buy new tyres as often.

And why do the AA agree with "the powers that be above her"? Are they in on the scam?

"They" like people to crash in straight lines, and know ordinary folk can't cope with the rear end stepping out of line, also having better traction is irrellevent to them.
 
There's an assumption here that brand new tyres grip better than scrubbed-in tyres, which is wrong. Given that a tyre has enough tread left to drain properly in the wet - which it always must have - and that wear across the tread is more or less even, it will give best grip the less tread it has - that's just described the tyre off the back of a front-wheel drive vehicle. Put new ones on the back to scrub them in - and to conform to the law in some countries - then put them on the front to prevent the rubber becoming too old.
So; put the new ones on the rear, then when the releasing agent has been worn off and the tyres scrubbed in, put them on the front? I don't have any axle stands or a trolley jack so I'd have to pay someone to do it.

New tyres go on the back. End of.
Testicles.

Ha ha, rubbish.
Absolutely.

Why is it rubbish? Got any proof to justify that claim?

I still go with the view new on rear, and have always done this.
Yeah me. 35 years and (approx) 1,250,000 miles.

Yeah, how exactly is it rubbish?

Are you saying she's faking losing control with older tyres on the rear?

Why would she do this?
You've obviously never seen "Unsafe at any speed" This was the book and film that made Ralph Nader's name for him.

Some interesting opinions on this one. I'm a college Lecturer in Motor Vehicle Studies and not many people consider me a 'retard'. It is generally considered within the industry that understeer is safer than oversteer. Most of the time extreme manouvering usually takes place under braking. Weight transfer forward on a car that understeers starts to bring the steering characteristics to a more neutral feel. Therefore with new tyres tending to have a greater slip angle than worn ones they will produce understeer on the front and oversteer on the rear. Also new tyres when produced have an oily/waxy coating on them that is a releasing agent to allow them to seperate from their moulds. This in damp conditions is extremely slippy. I once had a new tyre fitted to the rear of one of my cars and it rained later. As I travelled around a traffic island the back of the car started to drift with considerable ease. In my opinion, if you want safe, on the front. If you want exciting, put them on the back but don't say you weren't warned!
Somebody with a degree of authority.

She was clearly exaggerating the "problem" to fit the message the powers that be above her want to project. You could see how bored she looked, especially as she had to "lose control". I'd rather a nosy car thanks. :)
Here we have the anatomy of an oversteering front wheel drive car:

1) Enter bend too fast. Any vehicle that skids has too much momentum for the level of available grip.

2) Because the natural tendancy of a FWD car is to understeer, in an ideal world, the driver will realise this and start to take action there and then, as stated by Ms. Butler-Henderson and the woman in the US video.

3) The fact remains that the vast majority of drivers in this country, are too pre-occupied, distracted or simply insensitive/incompetent to detect when this is starting to happen, that by the time they do, the vehicle is close, if not at, terminal understeer.

4) By now the driver is trying to remember exactly what it is he is supposed to be doing at this point. Remember FWD cars are usually more nose heavy than RWD vehicles. The extra weight is pushing the nose still further into the front wheel skid. At this point, the driver does not make the calculated minor adjustment to the steering that would help cure the problem, (a) because it's
already gone too far and (b) because he is now panicking. Instead, he yanks the wheel over in the opposite direction (for argument's sake, let's say the car is in a left hand bend and is sliding to the right) so he pulls the wheel further to the left, which loads up the off-side front tyre which should increase grip. Alas, the tyre is no longer at an angle to the direction of travel whereby it will do any good. The flip-side of that is the near-side rear tyre is unloaded, therefore has less grip. He then takes his foot off the gas which further transfers weight to the front, loading up the off-side front and unloading the near-side rear even more and reducing the level of grip again. His next move is to brake. The above effects are exagerated yet further and it's now a case of "Goodnight Vienna", there'll be a Policeman along to take your statement in a minute sir.

5) There is a possibility, in a FWD car, that once our hero had used the steering to try and correct the skid, he could have used the throttle to keep the front end ahead of the back. In a RWD car he would have had to. Keeping some throttle on in a RWD vehicle would have the effect of counteracting the polar momentum which is when the back tries to pass the front, but this time in the opposite direction.

There is a bend on a slip road where the A538 joins the M56 towards Manchester, it's at J6, if anyone wants to have a go. It is at least as sharp as the one shown in the You Tube vid. I routinely take my Panda MJ and Mrs. Beard's Stilo 1.4 Active round that bend in the wet at 40. The Panda has tyres with less than 2,000 miles on all 4. The Stilo has tyres with 1,000 mile on the front and the original 4 year old 30,000 mile rubber on the back. Guess what? Neither cars oversteer. They both slip at the front first.

Doesn't mean I'm right of course, but having been on attachment to an accident investigation branch and undergone several courses myself, not to mention driven Oulton Park numerous times, I might, just, maybe, possibly have a valid viewpoint on this.
 
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New tyres go on the back. End of.

:yeahthat:

This is where I have always stood, and was confirmed 3 weeks ago when a friend smashed up her 2003 Fiesta.

Going around a damp corner (tad to fast but that niether her nor there) new tyres on the front, yanked the steering in, and rear end slid out, smashed the rear off side pannel of the Fiesta into the front of a Megane at 40, and then went head on into a tree.

Convinced that this could have been avoided if she had put some recently new tyres on the back and not the front.

She just lucky that her and her 3 passengers walked away with the worst injury being a broken wrist (rear nearside passenger of all of them).

Jon.
 
:yeahthat:

This is where I have always stood, and was confirmed 3 weeks ago when a friend smashed up her 2003 Fiesta.

Going around a damp corner (tad to fast but that niether her nor there) new tyres on the front, yanked the steering in, and rear end slid out, smashed the rear off side pannel of the Fiesta into the front of a Megane at 40, and then went head on into a tree.

Convinced that this could have been avoided if she had put some recently new tyres on the back and not the front.

She just lucky that her and her 3 passengers walked away with the worst injury being a broken wrist (rear nearside passenger of all of them).

Jon.

I'm convinced this could have been avoided if she new how to drive;)
 
Yeah me. 35 years and (approx) 1,250,000 miles.
And? Doesn't mean you are the tyre guru :p And that isn't proof.

I will still go with new on the back, especially in a car like the 100HP which tends to get driven quite hard around the twisties - I really don't want that back end stepping out on me.
 
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