We wouldn’t advise it! In general, you need to consider your pet’s temperament. It won’t be right for all dogs to be fixed in a small space. You need to think about how your dog deals with other people, cars, and moving fast. Take your dog out in the car first if you can and see how they deal with wind and other road users. As long as you’ve made sure the carrier is the right size for your dog, you can then try it out in it, perhaps stationary on the floor or on the bike. The next step is to do a trial with the bike moving and see how your pet deals with it. We’d also recommend doing a few runs over some rough ground, not too fast at first, so your dog can learn to anticipate bumps in the road.