Duel disks summon holograms of the cards you tack on them, and in the case of Dark Signers cause 'real damage', basically. (Under ordinary circumstances a hologram from such things is meant to fly Through stuff...but yeah.)

D-Wheels have those built into the device, but if you're saying she needs to Not Get That Feature, then I can think of a way for it to like. Malfunction somehow.

But yes! It's basically a bike that needs no gas...