When must a competitor put on their bike helmet?

Before mounting the bike.

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  1. Only on long rides
  2. After mounting the bike
  3. Before mounting the bike ✔

Why: The helmet must be on before mounting the bike and stay on until dismounting.

Huh, didn't know that: The helmet must be on before mounting the bike and stay on until dismounting.

The dad joke
Helmet first, then hop on, or you will be dis-qualified.
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References

Answer: Before mounting the bike. The helmet must be on before mounting the bike and stay on until dismounting.

  1. Triathlon en.wikipedia.org/wiki/Triathlon
    the competitor's helmet must be donned before the competitor mounts
    Checked 2026-11-07.

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