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.