I’ve hauled a few stray cats on a bike before. The trick is to lock ’em in a good crate or a sturdy backpack so they can’t bolt while you’re riding. Keep the space cool, give them water, and put a little food on the seat so they don’t get hungry. On a motorcycle you can strap a harness or put the crate under the seat. On a scooter or a bike you gotta be extra careful – make sure the animal isn’t blocking the rear view and that you’re not riding too fast in traffic. It’s risky, but if you’re careful and treat them like part of the crew, they’ll survive the ride.