Are they required to use both tire compounds in the 500?

I'm watching "Carb Day", and found myself wondering.

1 Answer

  • Anonymous
    7 years ago
    Favorite Answer

    No. On ovals you have tok use the hard tyres. The soft tyres are too dsngerous and would burst due to the high strain they are put under. They are not designed for ovals like the harder tyres are.

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