Engine & Performance for 2017 Harley-Davidson FLHRXS Road King Special

Engine & Performance for the 2017 Harley-Davidson FLHRXS Road King Special

The 2017 Harley-Davidson FLHRXS Road King Special features Engine: Milwaukee-Eight 107 V-Twin, Displacement: 107 cu in (1746 cc), Cooling: Air and precision oil-cooled cylinder heads. This trim includes Blacked-out Styling — Engine covers, exhaust, handlebars, front forks, and headlight nacelle are finished in black instead of chrome.. Owner note: Requires ~4.5 to 5.0 quarts of 20W-50; critical to monitor due to early M8 sumping risks. Known concern: Oil Sumping — Commonly fixed by upgrading to the 2020+ redesigned oil pump.. Learn more about this ride →