So what are inline scooters?Inline scooters are the next step up for children using 3 wheeled scooters. These types of scooters have 2 wheels that are inline with each other in a straight line. (Hence the name). 2 wheeled scooters are suited for children who are able to balance on the footplate of the scooter (often called the base or deck). Kids who don't need stabilisers on their bikes will generally be happier and comfortable with a 2 wheel scooter.