Engine & Performance for 2020 Harley-Davidson FLHXS Street Glide Special

Engine & Performance for the 2020 Harley-Davidson FLHXS Street Glide Special

The 2020 Harley-Davidson FLHXS Street Glide Special features Engine: Milwaukee-Eight 114 V-Twin, Displacement: 114 cu in (1,868 cc), Cooling: Air/Oil Cooled. This trim includes Milwaukee-Eight 114 Engine — The Special comes with the 114ci engine, while the Standard model retained the 107ci engine for 2020.; Blacked-out Finishes — Includes blacked-out engine components, exhaust, front forks, handlebars, and tank console.. Owner note: Heavy touring weight and high torque from the 114 engine typically wear the rear tire every 8,000–12,000 miles. Known concern: Idle RPM Fluctuations — Often corrected with a Stage 1 tune or cleaning the Throttle Body (IAC).. Learn more about this ride →