Project RUSHMORE - Engine: As every rider knows, the engine is at the heart of the experience of riding a motorcycle. The amount of torque and horsepower it delivers over the RPM range is in direct proportion to the feeling it gives you when you roll on the throttle. We know what riders want from a motorcycle engine because we’ve been building them for 110 years. Project RUSHMORE gave us the opportunity to dial it in just right. We conducted thousands of road tests with real riders giving us feedback to build the next iteration of the legendary Harley-Davidson® engine. The consensus was: We want more. More low-end torque, more passing power, more perfection in the tone of the exhaust note, more of the feeling we ride a motorcycle for. So we built the engines that deliver it. We’re proud to unveil the next level of Harley-Davidson® V-Twin engine. And prove once and for all, the customer is always right.
Twin-Cooled High Output Twin Cam 103® Engine: If you started in 1909 with the very first Harley-Davidson V-Twin engine and worked your way up through every engine, every innovation, every improvement, every ride, every durability test in all those years and countless miles since, you arrive at the Twin Cooled High Output Twin Cam 103™ engine. This is the top of the line. 103 cubic inches of air and precision cooled Harley-Davidson® V-twin power. Twin cooling cools the heads around the exhaust ports to deliver at or near peak performance under all operating conditions and temperatures. Higher compression ratio increases efficiency and horsepower. There’s a new airbox for increased airflow and a new cam to optimize low-end torque. It’s got the fastest 60 to 80 mph 5th gear roll on in the history of Harley-Davidson. Which means it’s got the most passing power in the history of Harley-Davidson. On top of all that, it puts less heat on the rider and passenger on scorching days and in stop and go traffic.
Pure Harley-Davidson Styling: Feast your eyes on the Twin Cam 103™ engine and there's no mistaking its roots. This is authentic Harley-Davidson style through and through with an attention to detail you won't find from any other motorcycle company. Black powder-coated heads and cylinders are highlighted by machined cooling fin tips and chrome rocker covers. It's a jewel machined out of metal. Pure. Dripping with power. From the classic edge of the cooling fins to the clean lines of cases and covers—the Twin Cam 103™ engine makes an ironclad statement to holding on to what's right and staying true to what satisfies the rider.
Six-Speed Cruise Drive® Transmission: You want a ride that rumbles—not begs for mercy—when you lean on it a little. The Six-Speed Cruise Drive® transmission provides smooth, quiet shifting and reduces engine speed on the highway, so you get a better match between engine turnover and road speed. And the Isolated Drive System makes acceleration flow in a smooth, steady stream from your wrist right down to the pavement. It's a rare ride when a bike responds like this, and a low growl goes a long way when you're opening up the road ahead.
Twin Cam 103™ Engine Heritage: The knowledge of what makes an engine truly move a rider runs deep at The Motor Company, and it was put to good use when we created the Twin Cam 103™ engine. We painstakingly perfected every cubic inch, pushing design and technology forward—all without compromising one bit of Harley-Davidson's unique styling. Evolved, yet carrying on the legacy of the Flathead, Knucklehead, Panhead, Shovelhead, Evolution®, Twin Cam 88® and Twin Cam 96™ engines that came before. The performance and durability are a direct result of the untold miles logged on the V-Twin since 1909, and the proud heritage that comes from a century's worth of commitment to life on two wheels.
Twin Cam 103™ Engine Innovation: Fire up the Twin Cam 103™ engine and feel the low-end torque unleashed. Thanks to the lightweight piston design, delivery of the added power is more refined than ever.