2017 Harley-Davidson Road Glide Ultra - DYNO TEST

The Milwaukee-Eight V-twin measures up on the Cycle World dyno

Big news recently rumbled out of Milwaukee, with the 2017 Harley-Davidson Milwaukee-Eight V-twin making its debut in the FL touring line of cruiser motorcycles. The Milwaukee-Eight is just the ninth Big Twin in the Motor Company's long and unbroken history of building motorcycles since 1903.

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So we couldn't wait to dyno test on of the new 2017 eight-valve, single-cam V-twins that come in 107 c.i. standard versions and and 114 c.i. CVO versions. The 2017 Road Glide Ultra we strapped to the Cycle World Dynojet 250i dynamometer for a comparative rear-wheel-horsepower reading is powered by the Twin Cooled 107-inch variant which benefits from standard Milwaukee Eight features including four-valve, dual spark plug heads (with a higher compression ratio than the Twin Cam), refined ride-by-wire sequential port fuel injection, cooler operation, lower idle speed with reduced vibration, slipper/assist clutch. As a touring model, it's liquid cooled heads benefit from radiators tucked into the lower fairing pods.

We are impressed with the Road Glide’s improved handling, refined manners and ultra-smooth torque delivery. But how did it do on the dyno? This standard 107c.i. Milwaukee-Eight V-twin matches the peak torque output of the 2016 Screaming Eagle 110B-powered Softail Slim S we had previously tested on the same dyno. That’s quite a boost. Check out the video for full numbers and to hear the new engine pound it out on the dyno.

2017 Harley-Davidson Road Glide Ultra Dyno Chart
2017 Harley-Davidson Road Glide Ultra Dyno Chart.Cycle World

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