Some of you probably think that these MotoGP riders must ride some pretty monstrous bikes to get some kicks in their free time...
Instead, in the case of Marco Simoncelli, often considered the craziest rider on the grid, we see that he finds an adrenaline rush riding a modified skateboard downhill on his back. If you don't believe us just check out the photo, where Sic even donned his full race leathers for the occasion.
