That pesky helmet storage...the owner's manual specifies that the area under the seat is designated helmet storage. And the website claims you can get 2 full faced helmets stored in the bike (I don't think so.)
Area under the seat:
Looks like a helmet will fit in there. But I tried to stick one under there...
...with some not so terrific results. The seat wouldn't close (note the white of the helmet.)
A little help from someone at BBO who has the same scooter--turn the helmet on its side, neck facing the bump inside the storage area...
...And the seat closes.