Grumpy Old Geeks Products Sena R1 Product Sena R1 3 mentions in 1 episode Sena R1 is the cycling helmet Jason describes as having group chat, FM radio, and audio playback features. Mentions 467: A Desire for Desires Aug 29, 2020 44:18 I got the Senna or Senna R1 smart cycling helmet. 44:57 it's got like chat in between the helmets 45:30 it also has an FM radio