Bicycle helmets do NOT protect against concussion

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The Spokesmen Cycling Roundtable Podcast

Episode 203

Most cycle helmets do NOT protect against concussion

Monday, 5th November 2018

HOST: Carlton Reid.

GUEST: Jim Moss.


Today’s episode features Carlton and Jim talking about cycle helmets. Jim sits on a bunch of helmet committees for ASTM, and a tweet of his went a little viral when he wrote that cycle helmets do not protect against concussions. This was a tweet in response to this Forbes article, “I Do Not Wear A Helmet.” (And that’s Carlton in the pic above … wearing a helmet.)


ASTM cycle helmet standards.

Jim’s helmet articles on

6D helmets – protection from concussions?

Helmets called for to prevent injury to golf players and spectators.

In 2005, BikeBiz reported that three US dental associations called for mandatory use not just of cycle helmets to protect against facial injuries but also mouthguards. “The American Academy of Pediatric Dentistry, the American Association of Oral and Maxillofacial Surgeons, and the American Association of Orthodontists advocate the use of mouth guards for children and adults when cycling,” said a joint press release at the time.

Sweden’s Hovding airbag “helmet”.

Kali helmets: concussions and real-world data.

MIPS (Multi-Directional Impact Protection System) helmet technology.

Ted Talks: David Camarillo: Why Helmets Don’t Prevent Concussions



  1. November 5, 2018

    Excellent podcast, Calton. This was one of the best discussions I’ve heard on the efficacy of bicycling helmets.

  2. November 6, 2018

    Thanks, Todd. Out of interest, do you wear a helmet when cycling? (I can’t remember.)

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