Just a courtesy to fellow riders. I appreciate it (a lot!), when someone signals me as to what’s up ahead, and I try to do the same.
How do I know, “they don’t know”...well, I don’t for sure know they didn’t get it. But it seems to me, that when they understand what I’m signaling, they reply in some unique manner acknowledging they get it.
As examples, when someone warns me, I try to signal my appreciation back to them with something more distinctive than a simple hand wave, like an “ok”, or “thumbs up”.
Interesting point about states not requiring helmets...I can see how the tap could be easily misunderstood then.
2017 Ducati SuperSport S
2015 Ducati Scrambler