My dog is sometimes running next to the bike, sommetimes riding in an open basket in a trailer if a long ride.
Last friday for the first time sitting innside the "bag" on my "homemade extra". Decided not to tie him to the bike that time, since he had no harness on.
Decided he would be safer falling off if he was not tied to the bike thinking I could not stop fast enough. Next time harness and tied to bike to help him feel safe and relax.
Easy dog to be around this one, he`ll trust me and do what I tell him. Bordercollie. A bit odd to ride with a 26 kg dog on one side and nothing on the other, but got used.