Justin Theroux Jennifer Aniston leather jacker BMW motorcycle

Should we call him the night rider?

On Friday, Justin Theroux was hardly recognizable as he zoomed through the L.A. streets in virtually all black attire to go with his black BMW motorcycle.

The 41-year-old actor/writer has been an avid biker boy and with his fiance Jennifer Aniston away shooting her latest film, he's probably enjoying the free time to roam on his hog!