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430 Run Flats opinions

Discussion in '360/430' started by mjposner, Apr 16, 2022.

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  1. mjposner

    mjposner Karting

    Dec 1, 2021
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    Michael J Posner
    #1 mjposner, Apr 16, 2022
    My F430 came with Potenza S001 225/35/19-S in the front and Potenza RE05A 285/35ZR. I have never had run flats before, but I was always told that they give a much harsher ride. Obviously the F430 is stiff to start, how much worse do they tires add and has anyone switched between the two and felt a difference?

    Fronts have only 2k miles, rears at 5k
     
  2. GCalo

    GCalo F1 Veteran

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    Greg Calo
    #2 GCalo, Apr 16, 2022
    horrible

    get rid of them

    had them from factory on a 530i. after 16K miles put on Michelins and got 3.5 miles per gallon more plus incredible ride.

    have a C300 with Continental runflats. Terrible ride. they are giving way to Michelins

    terrible idea for tires

    cannot understand anyone putting them on an F car
     
    VAF84 and Flea7 like this.
  3. pilotoCS

    pilotoCS F1 World Champ
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    #3 pilotoCS, Apr 16, 2022
    Run flats are noisy, ride terrible and expensive to repair/replace. Other than that . . . .

    My experience with them comes from a few BMWs over the years.
     
  4. Flea7

    Flea7 Formula 3
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    #4 Flea7, Apr 16, 2022
    They are also heavy.
     
  5. tazandjan

    tazandjan Three Time F1 World Champ
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    #5 tazandjan, Apr 16, 2022
    Lots of rotational unsprung weight affects a bunch of stuff.
     
  6. Mario Andretti

    Mario Andretti Formula 3
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    #6 Mario Andretti, Apr 16, 2022
    LIke said, never ever. Rather have a spare tire or worst case AAA ...
     
    VAF84 likes this.
  7. Flea7

    Flea7 Formula 3
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    #7 Flea7, Apr 16, 2022
    VAF84 and tomc like this.
  8. GCalo

    GCalo F1 Veteran

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    #8 GCalo, Apr 16, 2022
    this is now a "rock" solid contribution to this discussion
     
  9. Doctor Mark

    Doctor Mark Formula Junior

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    Mark Gronsbell
    #9 Doctor Mark, Apr 16, 2022
    Run flats are a very poor choice. My experience with run flats on several Corvettes where they were OEM revealed them to be very harsh riding due to the stiff sidewall, very heavy and had less handling ability than a comparable conventional tire.
     
  10. GCalo

    GCalo F1 Veteran

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    #10 GCalo, Apr 16, 2022
    exactly what I have experienced

    Makes the vehicle ride very rough especially over uneven road surfaces

    absolute junk
     
  11. mike_747

    mike_747 Formula Junior

    Dec 15, 2008
    794
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    #11 mike_747, Apr 17, 2022
    Ditto others saying lose the run flats. I recently test drove a new Mercedes Benz and it had run flats. This was not an entry level 300 but an $80k car. Rode very harsh and when I hit a small pothole (maybe 1.5" deep) you would have thought it was 8" deep the car was so shocked. Manufactures try and save a little wt., cost and add storage space in the trunk. For this reason alone, I walked away.
    The window sticker for my 08 F430 showed run flats and I was surprised Ferrari would even offer this.
     
  12. mjposner

    mjposner Karting

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    #12 mjposner, Apr 17, 2022
    So what tires are recommended? I like Pilot Sport 4s on my BMWs
     
  13. tazandjan

    tazandjan Three Time F1 World Champ
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    #13 tazandjan, Apr 17, 2022
    Pilot Sport 4S.
     
  14. LorenzoR

    LorenzoR F1 Rookie
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    #14 LorenzoR, Apr 17, 2022
    Mike, i have bran new Pilot sports 4s for sale...they are about 6 weeks old, never mounted. Pm sent
     
  15. mjposner

    mjposner Karting

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    #15 mjposner, Apr 21, 2022
    I am going with Pilot Sport 4s. Anyone want to buy my low mileage run flats!!!
     

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