Small bicycle relay...

 

Well it'd be forcing it, the engineering,

 

but you can also increase the diameter of the wheel,

 

as compared to the flight mode.

 

 

When in motorcycle mode, pushing out,

 

sides of the wheel, to increase diameter,

 

from within.

 

 

 

But of course, there would be gaps. and that

would need to be connected again.

 

from an inner mechanism, prepared portions.

 

 

no that don't make sense.

 

 

the diameter would be 2.5 to 3 meters without it.

 

is that big enough for safety. no idea.