Replacement tires for 355 GTS | FerrariChat

Replacement tires for 355 GTS

Discussion in 'Technical Q&A' started by vvvmd, Feb 19, 2004.

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  1. vvvmd

    vvvmd F1 Rookie
    Rossa Subscribed

    Dec 23, 2003
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    Full Name:
    Victor Villarreal
    My car is in the shop getting a full belt service and general going over. I need new tires so I called Tirerack. It seems the rear tires (265/40x18) are on back order for several months. The agent I talked to says he wouldn't change sizes. Anyone have any suggestions for replacements that won't chage ride height etc.
  2. Mitch Alsup

    Mitch Alsup F1 Veteran

    Nov 4, 2003
    Standard issue: 275/40ZR18s fit just fine, as do 296/35ZR18s. The 275/40s are so close to 265/40s that a pound of pressue will rebalance the oversteer/understeer relationship. The 295/35s may require a turn or two to be taken out of the rear ride height adjustment to reestablish the O/U relationship.

    There are zillions of 265/35ZR18s around to fit Porsches,... don't use them (0.5" too small in rolling radius).

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