Practice question

Under National Standard GB 811-2022 (Helmets for Motorcycle and Electric Bicycle Users), what is the difference between Class A (A类) and Class B (B类) helmets?

  1. Class A is for bicycle use only; Class B is for racing motorcycles
  2. Class A is for children; Class B is for adult passengers
  3. Class A helmets are full-performance helmets approved for all motorcycle types (including high-speed); Class B helmets are restricted to light motorcycles / mopeds (speeds <= 50 km/h)
  4. Class A helmets are made of metal; Class B helmets are made of foam

Answer: C — Class A helmets are full-performance helmets approved for all motorcycle types (including high-speed); Class B helmets are restricted to light motorcycles / mopeds (speeds <= 50 km/h)

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