2015 Harley-Davidson FLHTKL - Ultra Limited Low, PASSANGER BACK REST!!! FLOOR BOARDS!!! ENGINE GUARD!!! HARD SADDLE BAGS!!! UPGRADED GRIPS!!! WINDSHIELD!!! LUGGAGE RACK!!! Whether it´s a big sweeping curve or a set of tight turns, a Project RUSHMORE motorcycle feels rock-solid in the corners. We stiffened up the front end, increased the fork diameter to 49mm (an increase of 18 percent) and retuned the damping for a smoother ride. The responsiveness is dialed in.