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Replacement tires for 355 GTS

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

  1. vvvmd

    vvvmd F1 Rookie
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    Dec 23, 2003
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    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.
     
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  3. Mitch Alsup

    Mitch Alsup F1 Veteran

    Nov 4, 2003
    7,058
    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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