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I've always replaced ALL tires rather than two to keep everything alike especially with respect to the tread pattern and age
Under Steer is scary as hell and almost impossible to recover from short of letting off the gas and hoping for the best. Over steer an average driver that is not female should be able to drive out of easily. New tires should always!!!!! Go on the front
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I would say for a front wheel drive car and u have more chance of under steering in to a corner on a low grip situation. So I would rather have the newer tyres on the front. But I also see what u r saying. If it was rear wheel drive then yes I would definitely say to put the newer tyres on the rear.
new tires on front
I'm my experience for a front wheel drive car you always put the best tyres on the front. Reasoning as follows.
Cars are designed to understeer since it's a safer option. As ray points out. This is designed to such an extent that you will need either rock hard tyres or bald tyres on a wet road to induce oversteer in normal daily driving. Please note normal. Not racing round corners. Then things such as lift of oversteer comes into play.
So back to topic at hand. As per my engineering studies and limited racing experience the following holds true.
Where torque goes one has best tyres.
If it's 4wd with a 30/70 split you go rear.
With front wheel you go front.
With rear wheel you go back.
This is my 2cents for normal driving.
For spirited driving it's a whole different story, need to take into account suspension setup, sidewall flex in the tyres, vehicles weight and weight distribution etc. As most things in engineering you gotta compromise. There is no perfect solution.
new on front, old on back, imo
Personally I'm not fussed where any new rubber is as far as grip goes, if you're driving within reason for the conditions there should be no question of under or oversteer. Having said that, I'd always prefer the older tyres to be on the driving axle simply because they'll wear out faster there & be less likely to become age expired/rotted etc… but unless I'm pushing a car (in which case ideally all tyres are equally fresh) there's no real need for specific placement.
I'd only put the new ones on the back if it's RWD. Anything else is front first. Both steering and power transfer are important tools to regain lost control of a vehicle and I would prefer to at least dictate the general direction we're going. With oversteer you still have some degree of control. With understeer you're basically stuck in the direction you're going until you regain traction.
My 45 years as a professional driver tell me that the best tires always go on the front axle. Front tires do all of the steering and all of the propulsion (on front wheel drive cars). The front tires also do 80% of the braking, which is why the front brakes are noticeably beefier than the rears. All of these things contribute to why front tires wear much faster than the rears and it's why we do tire rotations in the first place. Incidentally, the front, left tire will wear the fastest because we drive on the right side of the road in North America and therefore right-hand turns are much tighter than left turns. There's extra weight shifted to the front, left tire on right turns, which causes it to grind on the pavement harder, causing it to wear out sooner than the right tire.
I worked for 2 different tire store. Both insisted new tires to rear.
I agree with you. But I did tires for a school district for 25 years and law states minimum 4/32 in the front and 2/32 seconds in the rear crazy!
Ray is right, the good ones have to go to the back of the car. If you experience hydroplaning, the rear will, if holding the good tires, not lose contact and the car goes straight ahead. Bad tires in the rear will let you spin off the road, you will not be able to catch your vehicle through countersteering. So always put the better treaded tires on the back of the car.
Since I have experienced what happens when your rear tires are bald in icy situations… New tires should go on the rear. You cant control your vehicle when your rear wont stay behind you… 🙂
Safety always says best tyres in the back. A understeer is always easier to correct then a oversteer.
i would never keep a mixed set. you need to change 2 tires with one remaining being perfect ond one being … eh, okay-ish you change all tires. tires is one of the last things I would ever cheap out on tires.
If there's one tire affected due to puncture and the remaining tires are still in better than okay condition (meaning good or better) you can change a single one, but with 2 needing replacement imeediately and one being "eh, you could change it i guess" you change all four.
I'd say panic stopping or steering are likely more common than oversteering or understeering so new tires on the front for me.
I agree with your tire placement Rainman but would put all new tires on after a wheel alignment! It's a matter of $, but better to be safe than sorry.
All great comments, sound logic presented for both scenarios. For me personally I would rather oversteer, and likely remain on the road vs understeer and travel across the yellow line, into incoming traffic, or run through the other lane(s) into any manner of obstacles.
Brand new on the steering wheels every time.
New on the rear.
I used to mainly have FWD cars, and when I was young, my front tires were close to replacement point, rears were fine. I swapped fronts to backs, thinking that the fronts do the steering, accelerating and braking, so they need more grip. The first time it rained after I swapped them, I had to brake fairly hard on a bend due to unseen queueing traffic. I ended up spinning and facing the car behind me. The next day I decided to get 2 new tires and put them on the back
I always ask that new tyres go to the back and the old ones to the front because the front ones wear faster than the rear ones and I wouldn't want old tyres that are prone to cracking on my vehicle.
Brake force applies to front wheels mainly, so front wheel new tire, rear wheel older tyre. In case you have a blow up it is better if it happens on the rear and not on the steering wheels so again new in front, older in rear. As a fact, always use good condition tyres and avoid all season ones. Don't cheap out on suspension components and brake systems, these are the ones that keep you alive.
new tires on the front wheel drive vehicles because i am rough on tires lol
Upfront is where I would change them as well. Sorry Ray Ray….
Get four tires !
I’ve been told best in rear since I can remember. I’m not as broke as before so I just would replace 3 tires
Sorry man but most of weigh is at the front, most of braking is done there and it's your drive wheels. I'd have those new tires up front.
In my personal opinion I would rather have the new tires on the Front as they are less apt to blow. Have you ever had a front end blow out at highway speeds?
I have had both and I would much rather have, if I have to have one, is in the rear.
without watching the whole video yet, i would put the better ones in the rear cause for most people oversteer is worse than understeer.
edit: ha I see we think similarly 😀
i find out why the wear is bad on two wheels and fix it, and then replace all four tires, but id put the new tires on the master breaking wheels
Round dot new tires go to the front wheel tires go to the rack the back four wheel drive you need four new tires that's usually even rules on
Best in the rear always regardless of FWD or RWD
As a long time urban cyclist, I know from personal experience that the physics of the vehicle dictate that most of your stopping power is coming from the front wheel(s). It would follow to me that that rubber would also be under the most stress in an unexpected/heavy breaking scenario. With that in mind I'd want the new rubber up front to eat that stress.
no no no no no, understeer is terrible to controll as opposed to overseer which is great fun sliding round corners in complete controll is awsome why would you want to mitigate that. you use throttle control to keep the back in the proper place in time and space as well as the steering wheel, but the brakes often just put you further out of control with understeer!
New tires on rear, best two remaining tires on front.
Put new meat on all the way around! Period. Amen.
I never really thought about it cause i always do all 4….
But now that you mention it, if wash out the front end in a turn, i just turn tighter and gas it to maintain my line…. (i got front wheel drive)
However, you cant do anything in the rear, if you gas a rear wheel drive in a turn, you wash out more, if you brake, you can also wash out more if its slick….
So yes, ill agree on the matter
Retired semi driver here. After a couple million miles and some blowouts on the steers and the drives I always insisted the best rubber is on the steering axle.
New tires on rear.
Always rear. If other tires don't grip as should replace….
I drove a van with bad tires and having the ass end slide out is way less fun than the front end.
Food for thought Ray. Here in Australia every tyre service centre I've been to the new ones go on the front of a front wheel drive.
And then snow comes and you have no traction in the front and by the forces of understeering you end up in the DITCH. If that was my car I'd say put them in the front (and I'm paying for it), no hard feelings. 🤣🙏
Being familiar with both oversteer and understeer (I race my car on road courses) I agree with you that for the average driver understeer is more easily handled than oversteer. The natural reaction to oversteer is to back off the gas pedal which will often worsen oversteer and result in a spin.
I say the new ones should go on the front. In a rear loss of traction situation on a front wheel drive car, recovery is accomplished by accelerating out of trouble by applying a little bit of power to the front to pull the car out of trouble. By putting the older tires on the front there won't be as much traction available to pull the car out of trouble. In a front wheel drive car the better the steering and traction available to the steering axel the better.
If you put the new tires on the rear, every time, through over acceleration, there is a traction loss there will also be a loss of steering, better known as transitional oversteer. When the car goes into a corner and pushes away from the direction it's steered that's oversteer, usually because it is transitioning, in the middle of the corner, from braking to accelerating. The last thing one wants is their car to quit steering in corner exit.
New on back as long they have power steering
For the same reason that DOT does not allow recap tires front steering axleson Commerce OTR and LOCAL trucks. SAETY FIRST. Early front wheel drive had Severe Torque Steer and it eats tires up. Law enforcement was very slow to start using Front wheel drive due to the torque steering issues. ALL CHP in California were required to retake the driving classes. And are not as predicable at high speeds because of lack of weight and stability in the rear. Best tires in front the rears……..they follow the front. And most Patrol Pursuit unit are real wheel drive
New tyres in the back agreed. Reasoning is that most control of the vehicle is in the front. Brakes, steering. You want the most grip on the rear axle to retain control and or regain control incase a skid happens