Harley-Davidson’s New Milwaukee-Eight Engine Debuts 2017 Touring Line


Gallery: New Harley-Davidson Milwaukee-Eight Engine

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Harley davidson
motorcycles have always been defined by their engines. Owners and devotees know the names and nicknames of each successive version of the powertrain. A new engine represents the start of a new generation of Big Twin. So when HD unveiled its 2017 Touring lineup with the new Milwaukee-Eight engine, the riding public took notice.

Three versions of the Milwaukee-Eight will be on the road for 2017:

  • The Milwaukee-Eight 107: 107 cubic inch (1750 cc) air / oil cooled 45 degree V-twin in Street Glide, Street Glide Special, Road Glide, Road Glide Special, Electra Glide Ultra Classic and Road King motorcycles and Freewheeler trikes, tuned to produce 111.4 lb-ft of maximum torque at 3,250 rpm.
  • Dual Cooled Milwaukee-Eight 107: 107 cubic inch V-twin with liquid-cooled cylinder heads in Ultra Limited, Ultra Limited Low and Road Glide Ultra motorcycles and Tri Glide Ultra trikes, tuned to produce 113.6 lb-ft of maximum torque at 3,250 rpm.
  • Milwaukee-Eight 114 Dual Cooled: A 114 cubic inch (1,870 cc) version of the liquid-cooled engine on CVO Limited and CVO Street Glide touring motorcycles, tuned to produce 124 lb-ft of maximum torque at 3,250 rpm min.

The Milwaukee-Eight will have one camshaft (abandoning the twin camshafts of the Twin Cam engine) and four valves per cylinder. Rubber mounting and an internal counterweight promise reduced vibration. Redesigned cylinder heads and exhaust system provide better heat management. A new knock sensor for each cylinder improves timing accuracy and allows for lower idle speed (850 rpm vs. 1000 rpm), further reducing engine heat. HD also boasts a “richer” exhaust note – a feature highly prized by Harley riders.

A drag racing-inspired air intake, sculpted cylinder heads and narrow-waisted cylinder bodies give the Milwaukee-Eight a more athletic appearance, while improving the fit for the rider and passenger’s legs.

Carrying capacity has been increased by 50 percent, better meeting the real needs of touring cyclists, who often plug accessories into their bikes for long rides.

With increased displacement, the Milwaukee-Eight engine will also provide more horsepower and torque and faster acceleration to HD touring riders. Harley claims a 10% increase in torque on all three engines and 8% to 12% faster acceleration. Of course, HD will offer a full selection of Screamin ‘Eagle performance parts for the Milwaukee-Eight, allowing owners to further improve the performance of their new motorcycles. Stage I, II and III kits will be available to increase torque by up to 24%.

In addition, the Touring lineup will receive all-new suspension components, front and rear. The front suspension is from Showa, a version of its SDBV (Showa Dual Bending Valve) forks, a racing-derived technology that was first introduced in 2014. The rear suspension features dual shocks with 15-30% more preload adjustment than before, hydraulically adjustable with just one button – no tools required.

The new Touring lineup ranges from $ 18,999 for the Road King to $ 40,999 for the CVO Limited.

Comprising 13 Touring motorcycles and tricycles, Harley-Davidson’s 2017 lineup includes 36 models. Entry-level rue 500 and rue 750; Six Sportster variants; Six Dyna models; Seven Softails; V-Rod Muscle and Night Rod. Three CVO (Custom Vehicle Operations) models are among the 36 2017 models: CVO Pro Breakout; CVO Street Glide; and CVO Ultra.


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