@bobjonkman asks, in regards to group communication:

Q2. Does anyone use whistle codes? The sweep can whistle twice to get the leader to slow down (spreading out too far is the most common problem I see on group rides), maybe three times for a full stop.

Are there standardized whistle codes for this kind of thing?

(Or are there other nonverbal auditory codes for this?)

#BikeNiteQ #BikeNite #BikeTooter #Cycling #MastoBikes cc @bikenite

@ascentale @bobjonkman @bikenite A2. No, but as a barely related response, I largely lost the ability to whistle by biting through my tongue while faceplanting in an over the bars incident a few years back. I have photos. You don't want to see them. #BikeNite
@pete @ascentale @bobjonkman @bikenite Whistling the "wow" whistle at that....