Dirtbike-skateboard.

The three-wheeled Triborg is a powerful, all-terrain skateboard destined for off-roading. The electric board does have a Kickstarter campaign, though is clearly more of an advertising tool than a crowdfunding effort. It comes equipped with a 24 V 20 Ah lithium battery pack, is highly customisable and starts at 2,350 dollars.
kickstarter.com, gizmag.com