Many of us put on our helmets every day to go ride, but we never really think about how effective they're going to be at preventing traumatic brain injuries. That appears to be all John Lloyed thinks about; after testing hundreds of helmets, he's arrived at some fairly startling conclusions. He relates his study in this episode, which also features Mark Barnes, host of the podcast "The Ride Inside."

Due to the length and detailed depth of the conversation with John and Mark, this episode contains no news segment.

Chasing the Horizon is brought to you by the BMW Motorcycle Owners of America. Get all the links for our guest and the news on the show notes page on chasingthehorizon.us.