I have spent many years working and running dogs on Sacco Carts. In fact I use to be the North American Distributor for Sacco Carts as I loved them so much! Sacco Carts use to be popular with mushers to train lead sled dogs as the dogs are attached somewhat similar to my Electric DogSled on Wheels but a different design as it’s a metal tubing style gangline that essentially keeps the dog hardwired to the cart so the dog can’t deviate like a regular traditional mushing rope style gangline would allow. Additionally like the Electric DogSled On Wheels you can steer and brake in a Sacco Cart so you can teach sled dog commands to dogs. So my design is similar in that the dogs are essentially hardwired to the bike and can’t deviate so the trails we travel over the east coast we won’t be an issue to other trail users as the dogs are uniform to the bike keeping our footprint narrow and trail manageable! Now when you add the electric assist it makes almost any trail an option for us!