For the disciplines of both bikejoring and scooter with 2 dogs, it is very important to ensure you have good brakes on your equipment and choose slightly less technical trails. To practice these sports, you will need a pulling harness for each dog. In order to connect the dogs to your bike or scooter, you will need a bikejoring bungee line as well as a bungee line extension to add the 2nd dog. Although the product is called an extender, it will act as a divider here to divide your bungee line for each dog.
If you already have a multisport bungee line at home, it is not mandatory to get the one specifically designed for bikejoring. You can simply add two extensions, one for each dog, to your multisport bungee line.
In both cases, either with the bungee line for bikejoring and one extension or with the multisport bungee line and two extensions, you will need a neck line. The latter is a small line that attaches to your dogs' collars to ensure that they stay close to each other during your activity.