Multiple choice general knowledge sports

Most racing tyres have ------ in the tyres

  1. air

  2. nitrogen

  3. oxygen

  4. carbon dioxide
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Racing tires use nitrogen instead of air because nitrogen molecules are larger and less permeable, maintaining more consistent pressure. Nitrogen also doesn't expand/contract as much with temperature changes and contains no moisture.

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