Hoverboard

Oh my god, these were so cool.

A hoverboard is a piece of equipment that the user stands on in order to travel around by hovering above the ground.

Fiction

Generation 1 cartoon continuity

They recalled all of them because some kid in Florida broke his neck or something.

While fishing with Hot Rod, Daniel Witwicky picked up the signal of an Autobot shuttle on his hand-held scanner. He excitedly raced off on his hoverboard to watch it land. He soon lost control and crashed on some rocks. Fortunately, Hot Rod was there to catch him. Hot Rod transformed and "Danno" rode the rest of the way in style. The Transformers: The Movie

Marvel Comics continuity

Triggerhappy once fell off a hoverboard and hit his head while practicing with a proton machine gun in Decepticon boot camp. The accident led to the deaths of a half dozen teachers and possible brain damage on Triggerhappy's part. Triggerhappy's Universe profile

The New Battle!!

Electro saved Junpei from a Decepticon attack at the Self Defense-Force by giving him a hoverboard. The New Battle!!

Beast Wars

I totally have one, but it's down at my grandma's house.

Optimus Primal's Transmetal form has a built-in hoverboard that he uses for transportation.

My dad got it for me on a trip to Japan. They still have them there.

Apelinq downloads his hoverboard from his Transfer Interlink.

Rescue Bots

Cody Burns used his hoverboard to reach the Griffin Rock lab. You've Been Squilshed

It proved handy in deflecting debris when Cody was trapped in an unstable building, inspiring Doc Greene to make him a repulsor badge. Rescue Boy