If you have a small dog that you want to take with you on your motorcycle, you could copy what this English pizza delivery man thought up to take his a Coton de Tulear, that goes by the name of Gizmo with him.
Canny Sean Cole of Plymouth, took a luggage box and cut it in half and used perspex panels and built this special dog travelling carrying box.
The box is complete with air holes and a fan that keeps the dog cool and according to the local police the doggie box even complies with highway laws.