BIG NEW HD MOTOR…The all new, big displacement motor from Harley-Davidson is impressive I tell yas. Here’s my take on the Milwaukee Eight motor.
The Milwaukee-Eight engines power the 2017 model year Touring and Trike motorcycles.
The motor’s styling is sleek, modern and continues to show off that classic Harley-Davidson V-Twin power look that many of us have grown to appreciate and even love over the years.
Every part of these motors is new. Yes, a clean-sheet design from the talented engineers and designers at the Motor Company. According to Harley-Davidson, they are the most powerful, coolest-running motors they have ever built and come with crisper throttle response and a truer, cleaner rumble-sound.
Massive rocker covers, big cylinder fins.
As you can see in the photo on the right, the rocker covers and cylinder air fins are massive. With 4-valves per cylinder, there’s a lot of action going on under those engine tops but word is that engine noise is reduced compared to the Twin Cam.
The new Milwaukee-Eight motor is quieter, yet still provides a rich, quasi-loud exhaust tone. There’s no mistaking the traditional Harley-rumble from this powerplant.
The all new Milwaukee-Eight 107 and Milwaukee-Eight 114 engines are all Harley-Davidson.
These Milwaukee-Eight V-twin motors are about power.
According to Harley-Davidson’s press releases, each new Milwaukee-Eight engine produces 10% more torque than the Twin Cam engine it replaced.
The Milwaukee-Eight has quicker acceleration.
The Motor Company spec information indicates that the 107ci accelerates 11% quicker 0-60 mph and 11% quicker from 60-80 mph in top gear…significant improvement compared to the Twin Cam 103ci.
The 114ci motor accelerates 8% quicker 0-60 mph and 12% quicker 60-80 mph…significantly faster than the Twin Cam 110ci it replaces.
The Milwaukee-Eight has Reduced Vibration
These new engines are rubber mounted so some vibration will be always be noticeable but, the engineers at Harley-Davidson use an internal counter balancer that now cancels 75% of primary vibration at idle. The feel, while still classic Harley-Davidson, is more refined and more comfortable.
The Milwaukee-Eight motor is offered in two displacements and three variations:
107ci Displacement – Oil-Cooled – (1750cc, 92.5hp) featuring precision oil-cooled cylinder heads for the Street Glide®/Street Glide® Special, Road Glide®/Road Glide Special®, Electra Glide® Ultra Classic®, Road King® and Freewheeler® models.
107ci Displacement – Liquid-Cooled – (1750cc, 92.5hp) featuring liquid-cooled cylinder heads for the Ultra Limited/Ultra Limited Low, Road Glide® Ultra and Tri Glide® Ultra models. The liquid-cooled engines are branded by Harley-Davidson as “Twin-Cooled”.
114ci Displacement – Liquid-Cooled – (1870cc, 100.6hp) featuring liquid-cooled cylinder heads for the CVO™ Limited and CVO™ Street Glide® models. Also branded as a “Twin-Cooled” Milwaukee-Eight.
My Bottom Line…
From all I’ve seen and read since the unveiling on August 23, 2016, the power characteristics of the classic Harley-Davidson engine culture remain…strong low-end torque, broad and flat curve through the mid-range that is ideal for the Touring rider.
To experience the Milwaukee-Eight power of the 2017 Harley-Davidson models for yourself, go to www.h-d.com/demos and schedule the test ride of your life.
Check out the roadtest report I did on the 2017 Street Glide Special…powered by the 107ci Milwaukee Eight.
Ride Safe Out There.
* Notes obtained from official Harley-Davidson Press Releases provided to the U.S. Media on 2017 Model Launch Day, Tuesday, August 23, 2016.
About Harley-Davidson Motor Company – Since 1903, the Harley-Davidson Motor Company has fulfilled dreams of personal freedom with cruiser, touring and custom motorcycles, riding experiences and events, and a complete line of Harley-Davidson motorcycle parts, accessories, general merchandise, riding gear and apparel. For more information, visit www.h-d.com.
About Motorcycle Marc – I’m a motoblogger. I prefer to ride motorcycles but when I can’t ride, I blog about it. Since 2009, I’ve developed a strong, dedicated following of gearheads, motorheads, biker-wannabes and 2-wheeled adventurers who love motorcycles and everything there is about motorcycles. #RideSafeOutThere – Marc J. Beaulieu (MJB)
Note: Copyrights and Trademarks are the property of their owners. No infringement ever intended. Manufacturer Names, Logos, Photos/Images, Websites and Model Information are Registered Trademarks of the Manufacturer. Also, note that specifications and any information in this blog is subject to change without notice. No representation of accuracy is made.