Runflat tyres?
 

[Closed] Runflat tyres?

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Whats the generic advice? My door card says 2.4bar all around and is not specific to RFT or normal tyres. However, internet best practice states:

a) RWD should have a lower pressure at the front, to act against washout oversteer

b) RFT tyres should be run at slightly higher pressures - somewhere between the normal and high load tyre pressure - to mitigate the stiff sidewalls being prominent on the road by elevating the centre of the tread.

Thoughts?

 
Posted : 13/10/2015 9:23 am
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Do what the door card says its probably correct. As for RFT / non RFT I've run both on the same car and mixed front / rear and simply followed the door card pressures.

 
Posted : 13/10/2015 9:31 am
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Assuming the manufacturer did some homework when they specced them for your car, go with what they tell you.

to act against washout oversteer

understeer? Do you have that problem a lot?

 
Posted : 13/10/2015 9:48 am
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Sorry I meant understeer.

And no I don't, just what I've read.

 
Posted : 13/10/2015 9:53 am
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I used to stick 34psi all round on both my 530d sport tourings.

Some said they felt the ride harsh but I never found that.

I never used to up the pressure even when towing yachts or filled full of windsurfing gear..

Never had a puncture either IIRC in 176k and 260k respectively..

 
Posted : 13/10/2015 9:56 am
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Thoughts?

you overthink.

do what the door card says.

 
Posted : 13/10/2015 9:57 am
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^ this

 
Posted : 13/10/2015 9:59 am
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Ok, done, back to 2.4bar / 35psi all round.

 
Posted : 13/10/2015 12:17 pm