Engine & Performance for 2021 Harley-Davidson FLHR Road King

Engine & Performance for the 2021 Harley-Davidson FLHR Road King

The 2021 Harley-Davidson FLHR Road King features Engine: Milwaukee-Eight 107 V-Twin, Displacement: 1746cc (107 cu in), Cooling: Air-cooled with oil-cooled cylinder heads, Fuel System: Electronic Sequential Port Fuel Injection (ESPFI). This trim includes Milwaukee-Eight 107 Engine — The FLHR uses the 107ci engine, whereas the Road King Special (FLHRXS) is equipped with the larger 114ci engine.; Chrome Finish — Features extensive chrome on the engine covers, exhaust, front end, and handlebars, unlike the blacked-out Special trim.. Owner note: Brembo pads provide excellent stopping power but can wear quickly under heavy touring use or aggressive braking. Learn more about this ride →