The 2025 Harley-Davidson® Street Glide® Ultra is designed to meet the demands of long-distance touring with two riders. This model integrates a powerful V-twin engine, optimized aerodynamic components, ample storage, and a comprehensive suite of technology and safety systems. These features have been developed and refined to support extended rides with increased comfort, control, and convenience. The combination of power, storage capacity, and rider assistance technologies positions the 2025 Harley-Davidson® Street Glide® Ultra as a capable machine for serious touring.
Engine Performance and Mechanical Specifications
The 2025 Harley-Davidson® Street Glide® Ultra is powered by the Milwaukee-Eight® 117 engine, a V-twin unit that produces 105 horsepower and 130 foot-pounds of torque. This engine configuration provides robust low- and mid-range torque, contributing to smooth acceleration and consistent power delivery. The engine’s design supports a fuel economy rating of 44 miles per gallon, balancing performance with efficiency for longer ride intervals.
The engine’s torque output facilitates confident handling and effortless overtaking, even when the motorcycle is fully loaded with two passengers and luggage. Its proven mechanical configuration supports steady performance across various road conditions and speeds, enhancing its suitability for long-haul journeys.
Aerodynamic Design and Rider Comfort
The aerodynamic improvements of the 2025 Harley-Davidson® Street Glide® Ultra have been developed using computational fluid dynamics and wind tunnel testing to reduce wind buffeting and increase rider comfort. The Batwing fairing, a defining feature of this model, incorporates a clear windshield that is four inches taller than those on standard Street Glide® models. This adjustment decreases helmet buffeting by up to 60 percent, contributing to reduced fatigue on extended highway rides.
The two-up comfort seat has been ergonomically designed to rotate the rider’s hips forward, which helps alleviate pressure on the spine. Heated grips are standard, providing additional comfort during cooler conditions. The passenger benefits from a King Tour-Pak® luggage carrier that includes a substantial back pad with armrests, supporting passenger stability and comfort. Hard-shell saddlebags, the King Tour-Pak®, and the fairing cubbies collectively offer 4.9 cubic feet of storage, more than twice the capacity of standard Street Glide® models. Saddlebag guards protect the motorcycle’s bodywork in case of minor tip-overs.
Fairing lowers with adjustable air vents and fork-mounted air deflectors further improve aerodynamic performance. The fairing lowers direct airflow to optimize rider comfort, while the air deflectors can be adjusted to either reduce wind impact on the rider’s torso or increase ventilation as needed. The fairing skirt works in conjunction with these components to streamline airflow and reduce turbulence around the rider.
Technology Integration and Rider Interface
The 2025 Harley-Davidson® Street Glide® Ultra is equipped with a 12.3-inch color TFT touchscreen display running the Skyline™ operating system. This high-resolution display allows the rider to access navigation, infotainment, and ride mode selection through an intuitive interface. The system supports Apple CarPlay® integration, enabling connectivity with mobile devices for calls, messages, music, and navigation.
Navigation functionality includes a hands-free voice recognition system. Riders can give simple spoken commands such as “Find me a gas station” to interact with the navigation system without manual input, allowing for safer operation while riding.
The audio system outputs 50 watts per channel, providing clear audio quality suitable for open road conditions. Control inputs on the display are designed to be accessible and responsive, reducing distraction during operation.
Suspension and Handling Characteristics
The suspension system features SHOWA® dual outboard emulsion technology shocks with three inches of travel. These shocks deliver consistent responsiveness to road irregularities, improving ride quality. Hydraulic preload adjustment is remote and can be altered quickly by hand, allowing riders to tailor suspension stiffness according to load and riding conditions.
The combination of the improved aerodynamic design and suspension tuning supports stable handling across a range of speeds. Adjustable fork-mounted air deflectors contribute to rider comfort and wind management, allowing for customization of airflow around the rider’s body.
Rider Safety Systems and Stability Control
Safety enhancements on the 2025 Harley-Davidson® Street Glide® Ultra incorporate multiple electronic systems designed to improve traction, braking, and stability in varying conditions. The Anti-lock Brake System (ABS) prevents wheel lock-up during braking, maintaining directional control during straight-line stops.
Electronic Linked Braking (ELB) synchronizes braking effort between the front and rear wheels when the rider engages the front brake lever or rear brake pedal. This system improves braking efficiency and balance, adapting to different braking intensities.
The Traction Control System (TCS) monitors and manages rear-wheel slip during acceleration, providing increased confidence on varying surfaces. Drag-Torque Slip Control System (DSCS) reduces rear-wheel lock or slip during abrupt downshifts or throttle closure, especially useful on wet or slippery roads.
These systems are enhanced with cornering-specific adaptations. Cornering Enhanced ABS (C-ABS), Electronic Linked Braking (C-ELB), Traction Control (C-TCS), and Drag-Torque Slip Control (C-DSCS) adjust braking and traction control based on the motorcycle’s lean angle, helping maintain stability through turns and curves.
Vehicle Hold Control (VHC) assists with hill starts by keeping brakes applied after release of the brake lever or pedal, preventing rollback on inclines. This system does not replace a parking brake but provides additional control during stops on slopes.
The Tire Pressure Monitoring System (TPMS) alerts the rider to abnormal tire pressure conditions via the information display, aiding in the maintenance of optimal tire performance and safety.
Integrated Rider Experience and Functional Features
The 2025 Harley-Davidson® Street Glide® Ultra features a new fuel tank medallion available in chrome or black to complement the bike’s trim. Console inserts display the Street Glide® Ultra name, reflecting model-specific design details.
Fairing skirts and saddlebag guards are finished to match the bike’s trim, contributing to both form and function by improving aerodynamic flow and protecting bodywork from damage.
The seat height of 26.9 inches when laden, combined with ergonomic design features, supports long-distance comfort for both rider and passenger, alongside heated grips to expand usability into cooler conditions.
Schedule a Test Ride Today
Testing the 2025 Harley-Davidson® Street Glide® Ultra is recommended for those evaluating its capabilities in real-world conditions. The integration of the Milwaukee-Eight® 117 engine, aerodynamic design, and advanced safety systems delivers a comprehensive touring package. Falcon's Fury Harley-Davidson® near McDonough, GA, offers opportunities to schedule a test ride and evaluate the 2025 Harley-Davidson® Street Glide® Ultra firsthand. The combination of engine performance, technology, and safety systems creates an environment that supports rider confidence and convenience on extended rides.