Sharing the roadQuestion 129 of 229

Who must wear a bicycle helmet in California?

  1. Bicyclists under 21 years old
  2. Bicyclists under 16 years old
  3. Only bicyclists on freeways
  4. Bicyclists under 18 years old
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Correct answer: Bicyclists under 18 years old

A bicyclist under 18 must wear a helmet.

Source: California Driver's Handbook (DL 600, California DMV, 2025), Section 7. Laws and Rules of the Road: Bicyclist Responsibilities, page 47

Practice sharing the road

Questions last reviewed: 18 October 2026