The 2025 Harley-Davidson® Street Glide® Ultra is engineered as a two-up touring motorcycle with features focused on long-distance comfort, performance, and rider safety. This model incorporates refinements that address both aerodynamic efficiency and ergonomic design to enhance the riding experience on extended trips. The following sections present a detailed examination of its technical components and functional systems.
Engine Performance and Mechanical Specifications
With 105 horsepower and 130 foot-pounds of torque, the Milwaukee-Eight® 117 engine gives the 2025 Harley-Davidson® Street Glide® Ultra the output needed for long-distance touring. This V-twin setup is engineered to deliver smooth throttle control and dependable torque, even when carrying a passenger and full luggage.
An estimated fuel economy of 44 miles per gallon supports extended rides with reduced stops. The transmission and drivetrain are configured for balanced acceleration and consistent power at varying speeds. Together, these systems ensure reliable performance across a wide range of touring demands.
Design Features Focused on Touring Efficiency
The design of the 2025 Harley-Davidson® Street Glide® Ultra includes a Batwing fairing developed through computational fluid dynamics and wind tunnel testing, aiming to reduce helmet buffeting by up to 60 percent compared to earlier models. The windshield is extended by four inches compared to the standard Street Glide®, contributing to improved wind protection and reduced rider fatigue. The two-up seat is ergonomically configured to rotate the rider’s hips forward, which alleviates pressure on the spine during prolonged periods of riding. Heated grips are standard to increase rider comfort in cooler environments.
The storage solution is comprehensive, combining a hard-shell King Tour-Pak® luggage carrier with saddlebag compartments and fairing cubbies. Total storage volume reaches 4.9 cubic feet, significantly increasing capacity over standard models. The King Tour-Pak® includes a passenger back pad with integrated armrests, contributing to passenger stability and comfort. Saddlebag guards are matched to the bike’s trim and protect against damage in case of low-speed tip-overs.
Technology and Instrumentation
The 2025 Harley-Davidson® Street Glide® Ultra is equipped with a 12.3-inch color touchscreen display that operates on the Skyline™ OS platform. This display provides access to infotainment options, navigation, and bike settings through a responsive and clear interface. Integrated Apple CarPlay® support allows riders to connect compatible devices for music, calls, and messaging, while built-in navigation supports hands-free voice commands. The voice recognition system enables riders to perform functions such as locating fuel stations using simple speech inputs.
The audio system output is designed to maintain audio clarity at highway speeds. The interface also allows switching between four ride modes to adjust the bike’s performance characteristics to rider preferences or road conditions.
Safety Systems and Rider Assistance
The Rider Safety Enhancements suite is a comprehensive group of electronic systems designed to support control and stability under various riding conditions. The Anti-lock Brake System prevents wheel lockup during braking events, helping maintain directional control. Electronic Linked Braking distributes brake force to both wheels when either the front brake lever or rear brake pedal is applied, improving braking efficiency.
The Traction Control System is calibrated to prevent rear wheel spin during acceleration, which is particularly important on low-grip surfaces. The Drag-Torque Slip Control System reduces rear wheel slip during rapid downshifts or throttle release, minimizing the risk of rear wheel lock under deceleration.
Vehicle Hold Control maintains brake pressure after a stop on an incline, preventing the motorcycle from rolling unintentionally during hill starts. This feature activates by squeezing and releasing the front brake lever or rear brake pedal.
Additional cornering enhancements include variants of the ABS, Electronic Linked Braking, Traction Control, and Drag-Torque Slip Control systems that adjust their operation based on the motorcycle’s lean angle. This allows for more precise intervention during cornering, enhancing stability without abrupt interruptions to rider input.
The Tire Pressure Monitoring System continuously monitors tire pressure and alerts the rider if values fall outside recommended ranges. Proper tire pressure contributes to handling stability, tire longevity, and overall safety.
Suspension and Aerodynamic Handling
The suspension system on the 2025 Harley-Davidson® Street Glide® Ultra includes SHOWA® dual outboard emulsion shocks, offering three inches of travel for a balanced and comfortable ride. These shocks offer consistent damping performance and include remote hydraulic preload adjustments that can be made by hand to accommodate varying load conditions or rider preferences.
Aerodynamic improvements extend to new fairing lowers equipped with adjustable air vents and enlarged fork-mounted air deflectors. These components work together to direct airflow away from the rider’s torso or increase ventilation when desired. The fairing skirt complements these elements by optimizing airflow management and maintaining the motorcycle’s visual lines. These features collectively reduce wind turbulence, helping maintain rider focus and reducing fatigue on longer trips.
Schedule a Test Ride Today
Understanding the full range of technical features and specifications of the 2025 Harley-Davidson® Street Glide® Ultra is essential, but experiencing its performance and comfort firsthand provides the clearest assessment. Testing the motorcycle in real riding conditions demonstrates the effects of its aerodynamic design, engine responsiveness, suspension tuning, and safety systems. Those interested in a detailed evaluation of the bike’s capabilities should consider scheduling a test ride at Speedway Harley-Davidson® near Winston-Salem, NC. This allows direct interaction with the advanced powertrain, ergonomic design, and integrated technology features in a controlled environment.