Zero has always been know for making either dirt bikes or street bikes, but never all in one. The Zero S was the first bike that could handle different terrains and now Zero is back.
The Zero DS (dirt/street) is a fully all-terrain bike that rips up any surface on the road. The bike was given better suspension and bigger tires in order to accommodate to the changing surfaces.
You can now start your motorcycle journey anywhere and never need to hitch it up to your spot in the back of your truck (or van, or bus for that matter).