There is an ultrasonic dog repeller on his bike Ultrasonic dog repeller in action Guy attaches ultrasonic dog redpiller to the back of his bike - iFunny Brazil
Dog Trailer Add One BIKE ORIGINAL | Decathlon
What's the best way to deal with dogs when your sprint sucks? : r/gravelcycling
This dude has ultrasonic dog repellent on his bike.. : r/BeAmazed
Man Develops Ultrasonic Dog Repellent for Safer Bike Rides
How a dog deterrent device can improve bicycle safety and keep dogs away from you.
Best way biking with dog: pet carrier, basket, cargo trailer and more! | Momentum Bikes US
Halt! Dog Repellent - Bicycle Barn
Halt! Dog Repellent | Personal Protection when Bicycle Riding – SprocketKings