Originally Posted by
Polaris OBark
But presumably that doesn't change the way the rider smells.
I've sometimes wondered if some bikes emit a noise > 20 kHz, so that we can't hear it, but they can.
I don't notice any dog getting out of my way in a hurry so I doubt my bike is making loud ultrasonic noise.
Sometimes I even have to sound the bell or horn to get them to look at me so they won't try to jump into my path and risk a collision. I faced more danger among house cats that loves to randomly cross your path without warning.