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 new tyres at rear, no tyre shop does this

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jaycee1
post Nov 22 2022, 09:48 AM

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QUOTE(ExCrIpT @ Nov 22 2022, 09:36 AM)
majority of the stopping power is at the front when you brake so dont you want new tyres with plenty of grip at the front?
in the event where you skid and want to regain control, front new tyres  with lots of grip will save you rather than old ones at the front.

new tyres at the back and old tyres in the front just doesnt make sense
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On the surface yes.

But most drivers instinctively know how to correct for understeer. Not for oversteer. Oversteer happens when you have more grip in the front than the rear, especially mid corner when lateral forces are highest.

Also when braking, weight transfer will go to the front, leaving little "weight" and hence grip at the rear causing a potential tail out, which unless you are properly trained, will usually not be recoverable. To correct for oversteer, you need to know how to correctly countersteer and let off the brakes get back on the throttle to transfer weight back to the rear to settle it. It is quite counter intuitive for most drivers.

On straight line braking, the front will usually clear the water minimizing rear aquaplaning, but this does not happen in a corner, in fact the front tyre will put water in the path of the rear tyres leading to potentially higher risk of the rear aquaplaning.

That is the logic of putting new tyres on the back.

FWIW I put new tyres on the front. But I also know how to correct an oversteer condition well.

This post has been edited by jaycee1: Nov 22 2022, 09:56 AM
jaycee1
post Nov 22 2022, 09:55 AM

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QUOTE(eyerule @ Nov 22 2022, 09:47 AM)
just tell them you pay money they do what you want la. laugh laugh what? laugh some more tell them no need to do, give back money you go elsewhere.
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Shops people are not so technical. They just learn from an old sifu which is not so properly technically trained.

Once I told a shop to set my car up for a very radical suspension alignment and they scoffed at the idea saying the car will not be drivable. Perhaps by novice drivers. My car with the setting so just so damn fun, quick and agile on the corners. It would run rings around much more sporting cars on a short track...assuming you know how to drive.

Learn the mechanics and physics behind what you want to do and then you will understand why and what you do regardless of what these guys tell you.

 

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