The 2025 Harley-Davidson® Street Glide® Ultra continues to function as one of the most capable full-dress touring motorcycles within the Harley-Davidson® lineup. It combines a power-dense engine platform, updated rider and passenger ergonomics, improved aerodynamic efficiency, integrated storage solutions, and a redesigned user interface for better control over long-distance operations. This model is designed with full touring utility in mind, prioritizing consistent mechanical performance, stable highway dynamics, and increased rider control across various environments.
Milwaukee-Eight® 117 V-Twin with Liquid-Cooled Cylinder Heads
The powertrain for the 2025 Harley-Davidson® Street Glide® Ultra is the Milwaukee-Eight® 117. This 117 cubic inch V-Twin engine delivers 105 horsepower and 130 pound-feet of torque. Power is routed through a six-speed transmission configured for smooth gear changes across city and highway speeds.
The engine features a liquid-cooled cylinder head system with a centrally located radiator. This design increases thermal efficiency and helps manage operating temperatures during prolonged operation. Fuel efficiency is managed through electronic sequential port fuel injection, while the dual counterbalancers support a lower vibration profile. The result is a stable engine feel that improves comfort during extended riding durations.
Redesigned Fairing for Stability and Controlled Airflow
The batwing fairing has been revised to minimize turbulence while optimizing wind direction around the rider and passenger. Developed using wind tunnel validation and computational fluid dynamics, the fairing is shaped to reduce pressure zones that commonly generate helmet buffeting. Air is redirected in a way that produces a more linear flow path along the sides of the fairing and windshield.
Integrated vents and adjustable air deflectors further increase rider control over cockpit airflow. These systems help reduce fatigue by minimizing exposure to wind shear and redirecting cold or hot air depending on rider preference. The side deflectors are easy to operate while riding and offer practical airflow customization without requiring modifications.
Ergonomic Two-Up Seating with Revised Support Geometry
The seat has been updated for both the rider and passenger. The rider’s portion incorporates a new foam contour that subtly rotates the hips forward. This minor change redistributes pressure along the lower back and thighs, reducing long-term fatigue. The seat’s forward contour also promotes more direct control over the footboards and handlebar inputs.
Passenger accommodations include a wide, supportive backrest and standard armrests. The passenger seat is shaped to reduce forward sliding and integrates into the King Tour-Pak® system without gaps or inconsistencies in finish. Heated grips are standard for the rider, offering additional control during colder operating conditions.
Infotainment System with 12.3-Inch Display and Skyline™ OS
The 2025 Harley-Davidson® Street Glide® Ultra features a 12.3-inch TFT color display mounted centrally in the cockpit. This full-touch unit serves as the central interface for the infotainment system, powered by Skyline™ OS. The display integrates navigation, trip data, rider mode selection, audio functions, and Apple CarPlay® compatibility.
The large screen size allows more data to be displayed simultaneously without reducing readability. Navigation visuals, ride mode graphics, and audio settings can be customized to fit rider preference. System updates improve menu access and minimize required interactions while underway. The layout is optimized for visibility under varying light conditions, with automatic brightness adjustments for both daytime and nighttime use.
Audio Clarity and Rider Communication Preparedness
A two-speaker audio system with 200 watts of power is factory-installed on the 2025 Harley-Davidson® Street Glide® Ultra. The speaker positions ensure balanced projection across both rider and passenger spaces. Audio fidelity remains consistent at highway speeds due to the combination of speaker wattage and fairing acoustics. The head unit supports hands-free functionality and pairing with Bluetooth® headsets or helmet communication systems.
This configuration enables seamless rider-to-passenger communication as well as wireless phone call operation or streaming audio playback. Volume adjustment and source selection can be handled through the display or handlebar-mounted controls. The infotainment system also supports headset connectivity to interface with the ride modes and navigation voice guidance.
Cornering-Aware Rider Safety Enhancements
The 2025 Harley-Davidson® Street Glide® Ultra is fitted with a group of electronic safety technologies designed to maintain stability under varying road conditions. These include a cornering-enhanced anti-lock braking system, traction control, linked braking configuration, and vehicle hold control.
Cornering ABS adapts brake pressure based on lean angle and predicted traction thresholds, helping the rider maintain command of the motorcycle during panic braking in turns. Traction control monitors rear wheel slippage and reduces throttle or applies rear brake pressure if loss of grip is detected. The linked braking system balances front and rear brake response depending on speed and braking force, improving stopping consistency. Vehicle hold control activates the rear brake when the motorcycle is stopped on an incline, providing time to release the clutch without rollback.
Together, these systems operate automatically and do not require intervention by the rider. They are designed to support safe operation, particularly in conditions involving sudden stops, low traction, or tight cornering while loaded.
Extended-Volume Storage System
Storage capacity is expanded on the 2025 Harley-Davidson® Street Glide® Ultra. The King Tour-Pak® hard luggage case, combined with side saddlebags and fairing compartments, provides a total of 4.9 cubic feet of enclosed storage space. This configuration supports extended touring with sufficient space for two helmets, riding gear, and trip essentials.
The Tour-Pak® compartment includes an integrated passenger backrest and armrests. It opens via a single locking latch for quick access. Saddlebags open outward from the top for easy loading. Their sealed design protects against moisture intrusion. The fairing compartments offer quick-access space for smaller items like gloves, sunglasses, or documents.
Structural Components and Utility Features
The chassis of the 2025 Harley-Davidson® Street Glide® Ultra uses a touring frame platform constructed for high-load rigidity and balanced weight distribution. Front suspension is a dual-bending valve design with optimized damping rates, while the rear utilizes emulsion shocks with hydraulic preload adjustability.
Paint-matched saddlebag guards protect the side cases from incidental contact during parking or tight maneuvers. A reshaped fuel tank console, integrated tank medallion, and fairing trim provide visual continuity across the motorcycle.
The motorcycle is designed to support optional Harley-Davidson® accessories, including luggage racks, lighting kits, or foot controls.
Schedule a Test Ride Today
Long-distance touring meets modern engineering in the 2025 Harley-Davidson® Street Glide® Ultra, featuring an ergonomic layout, responsive torque delivery, and integrated infotainment. Its fairing design enhances airflow control, while storage capacity supports extended travel without compromise. Tampa Bay Harley-Davidson® near Brandon, FL offers riders the opportunity to assess this model up close and understand its touring functionality. Schedule your test ride and take the 2025 Harley-Davidson® Street Glide® Ultra out on local roads to evaluate comfort, control, and highway readiness. Our dealership team is available to assist with a full walkthrough and answer technical questions during your visit.