The Harley-Davidson® CVO™ Road Glide® ST was first introduced for the 2022 model year as a distinct performance-focused variant within the Custom Vehicle Operations lineup. Its introduction marked a deliberate shift toward incorporating competition-inspired engineering into a factory-produced touring motorcycle. Unlike standard touring models, the Road Glide® ST was developed with an emphasis on power density, reduced mass, and electronic performance management while retaining long-distance capability.
The 2025 Harley-Davidson® CVO™ Road Glide® ST had evolved into a refined platform defined by measurable output gains, advanced suspension architecture, and a fully integrated digital interface. The design direction remained consistent with its original purpose, prioritizing mechanical efficiency and rider control rather than cosmetic expansion. This evolution provides the technical framework that informs expectations for the upcoming 2026 Harley-Davidson® CVO™ Road Glide® ST, which is positioned as a continuation of this performance-driven trajectory.
Milwaukee-Eight® 121 High Output Engine Architecture
The 2025 Harley-Davidson® CVO™ Road Glide® ST is powered by the Milwaukee-Eight® 121 High Output V-twin engine, the most powerful factory-installed engine used in a Harley-Davidson® production motorcycle to date. This engine produces 127 horsepower and 145 ft-lb of torque, delivering sustained output across a wide operating range. The displacement and internal configuration support high airflow efficiency, contributing to strong acceleration and consistent power delivery under load.
A high-performance camshaft profile increases valve lift and duration, allowing the engine to maintain output at higher engine speeds. The Heavy Breather intake system improves volumetric efficiency by reducing intake restriction, while an increased rev limit of 5,900 rpm allows extended operation within the upper performance range. These features collectively support improved throttle response and higher sustained engine speeds without compromising mechanical stability.
The engine configuration supports a balanced thermal profile, ensuring consistent operation during extended riding periods. Fuel efficiency is rated at 44 miles per gallon, reflecting optimized combustion and airflow management relative to output levels.
Exhaust Flow Management and Weight Reduction
Titanium mufflers are used to reduce overall mass while maintaining structural strength under high heat conditions. Titanium construction allows thinner wall sections compared to traditional steel systems, contributing to lower exhaust weight and improved mass centralization. Increased exhaust flow capacity supports engine breathing at higher rpm ranges, complementing the high-output camshaft and intake system.
The exhaust system design also supports controlled backpressure levels, ensuring torque characteristics remain consistent throughout the powerband. This balance between flow and pressure contributes to predictable engine behavior during acceleration and deceleration.
Fully Adjustable Suspension Systems
Chassis control is supported by a fully adjustable SHOWA® suspension system designed for precision tuning. The front suspension consists of 47mm inverted forks with 4.6 inches of travel. These forks allow independent adjustment of compression, rebound, and preload, enabling calibration for rider weight, riding style, and road conditions.
The inverted fork design increases rigidity and improves steering feedback by reducing flex under braking and cornering loads. This contributes to improved front-end stability during aggressive riding scenarios.
Rear suspension duties are handled by dual outboard SHOWA® Remote Reservoir shocks with three inches of travel. The remote reservoir design separates oil and gas to maintain consistent damping performance during repeated compression cycles. Shock placement between the saddlebags and rear fender supports effective heat dissipation while preserving rear wheel travel efficiency.
Wheel, Brake, and Handling Characteristics
Cast aluminum wheels are used to reduce unsprung mass, improving suspension response and steering precision. Lower unsprung weight allows the suspension to react more effectively to road surface changes, supporting tire contact and handling consistency.
Braking performance is supported by dual floating brake rotors. The floating design allows controlled lateral movement, improving heat dissipation and reducing the likelihood of rotor warping during repeated high-load braking. This contributes to consistent braking feel and predictable stopping performance.
Together, the wheel and brake systems support controlled deceleration and stable handling during both straight-line braking and corner entry.
Aerodynamic Structure and Lightweight Materials
The fixed-frame-mounted fairing design of the Road Glide® platform supports aerodynamic stability at sustained highway speeds. On the 2025 Harley-Davidson® CVO™ Road Glide® ST, this fairing is paired with lightweight materials to reduce mass without compromising rigidity.
A forged carbon fiber front fender replaces traditional steel construction. Carbon fiber offers high tensile strength with reduced weight, contributing to improved steering response and front suspension efficiency. The forged finish provides structural consistency while maintaining durability under road debris impact.
Weight reduction efforts extend throughout the motorcycle, supporting a lighter overall feel that enhances responsiveness during acceleration and directional changes.
Ergonomic Configuration and Rider Interface Geometry
The ergonomic layout of the 2025 Harley-Davidson® CVO™ Road Glide® ST is configured to support control during extended riding periods. A lightweight solo seat provides a steep rear support angle that stabilizes the rider during acceleration and braking. The seat height, measured at 26.7 inches when laden, allows consistent ground contact while maintaining adequate suspension travel.
Tall risers and moto-style handlebars position the rider upright with forward reach, improving steering leverage and reducing strain during sustained riding. This configuration supports precise control inputs without excessive upper body load.
Mini floorboards provide sufficient foot support while preserving lean angle clearance. Their compact profile minimizes interference during cornering, supporting consistent chassis dynamics.
Digital Display and Operating System Integration
The 12.3-inch TFT display serves as the central control interface for vehicle data and rider settings. Powered by Skyline™ OS, the display presents instrumentation, ride mode selection, navigation, and audio controls through a single touchscreen interface.
The display is engineered for visibility across varied lighting conditions and provides clear access to system adjustments without requiring external devices. Navigation functionality includes traffic and weather overlays, supporting route planning during extended travel.
The interface allows riders to adjust vehicle behavior through integrated menus without mechanical intervention.
Ride Mode Calibration and Performance Management
Eight selectable ride modes allow the motorcycle’s electronic systems to adjust throttle response, engine braking, and traction intervention levels. These modes support adaptation to different riding environments and performance requirements.
Track and Track+ modes are included to provide reduced electronic intervention for closed-course operation. These modes allow greater rider control over throttle input and braking behavior while maintaining system oversight for stability.
Ride mode selection influences overall vehicle response, enabling tailored operation without mechanical modification.
Integrated Rider Safety Systems
Rider Safety Enhancements are designed to support vehicle stability during acceleration, braking, and deceleration. Anti-lock Braking System functionality prevents wheel lock during hard braking scenarios, supporting directional control.
Electronic Linked Braking distributes braking force between front and rear wheels based on input and operating conditions. This system adjusts braking effort to improve stopping performance while minimizing abrupt weight transfer.
Traction Control System functionality limits rear wheel slip during acceleration, supporting consistent tire contact. Drag-Torque Slip Control reduces rear wheel instability during aggressive downshifts or sudden throttle reduction.
Cornering-enhanced versions of ABS, Electronic Linked Braking, Traction Control, and Drag-Torque Slip Control adjust system response based on lean angle, supporting intended cornering paths.
Vehicle Hold Control maintains brake pressure during hill starts, preventing rollback until throttle input is applied. Tire Pressure Monitoring alerts the rider to pressure deviations, supporting tire longevity and handling consistency.
Performance Touring Direction and Forward Development
The 2025 Harley-Davidson® CVO™ Road Glide® ST reflects a mature integration of high-output engine design, adjustable suspension systems, and electronic management. Its configuration demonstrates a consistent focus on measurable performance metrics rather than cosmetic expansion. This approach establishes a clear technical baseline for the upcoming 2026 Harley-Davidson® CVO™ Road Glide® ST, which is expected to continue refining efficiency, control integration, and system responsiveness.
Visit Pig Trail Harley-Davidson® for a Test Ride
A controlled test ride provides the most accurate assessment of the mechanical characteristics, including throttle response, suspension tuning, braking behavior, and electronic system integration of the 2025 Harley-Davidson® CVO™ Road Glide® ST. Evaluating these systems in operation allows riders to experience how the Milwaukee-Eight® 121 High Output engine interacts with the chassis and rider safety technologies. The combination of adjustable suspension, digital ride modes, and stability systems becomes apparent during varied riding conditions. Scheduling a test ride supports informed evaluation of performance touring capabilities and system functionality. Availability for this experience can be explored through Pig Trail Harley-Davidson® near Bentonville, AR.
