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550 Tire Pressure

Discussion in '456/550/575' started by HardTen, Mar 12, 2013.

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  1. HardTen

    HardTen Formula 3
    Owner Rossa Subscribed

    Aug 7, 2011
    2,363
    Ft. Worth, TX
    #1 HardTen, Mar 12, 2013
    I have a set of the modular Barchetta wheels on a 550 and when I purchased the car it had Michellin Pilot Sports on it with 255/40/ZR18 in the front and 295/35/ZR18 in the rear. I know what the manual says about pressure for the stock sizes, but does anyone have a recommendation for the alternate front tire size? I have to believe it should be in excess of 29 psi, but I thought it would be best to ask.
     
  2. dakharris

    dakharris Two Time F1 World Champ

    Jun 7, 2001
    29,441
    Sleepy Hollow
    Full Name:
    Cavaliere Senzatesta
    #2 dakharris, Mar 12, 2013
    32 all around.
     
  3. cgt000

    cgt000 Formula Junior
    Silver Subscribed

    May 2, 2014
    780
    Northeast
    #3 cgt000, Jan 4, 2018
    I have my 550 stored for the next 2 or 3 months depending on the weather. What is the best tire pressure to avoid flat spots on the tires? Is it OK to raise the pressure to 50 psi without damaging the tires?
     
  4. Motob

    Motob Formula 3
    Professional Ferrari Technician

    Nov 11, 2003
    2,365
    Frederick, Maryland
    Full Name:
    Brian Brown
    #4 Motob, Jan 4, 2018
    The tires will have a maximum rated pressure on the sidewall that you can inflate them to. That said, 50PSI will not damage the tires, just do not drive the car with the tires at that high a pressure. The higher pressure will help avoid the flat spots.
     
    cgt000 likes this.
  5. cgt000

    cgt000 Formula Junior
    Silver Subscribed

    May 2, 2014
    780
    Northeast
    #5 cgt000, Jan 4, 2018
    Appreciated
     

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