The 2025 Harley-Davidson® CVO™ Road Glide® ST stands at the intersection of factory performance tuning and specialized design. This model represents the most aggressive iteration of the Road Glide® series to date, refined for single-rider performance with substantial updates in engine output, material composition, chassis tuning, and rider technology. Built with reduced mass and precise geometry, the 2025 Harley-Davidson® CVO™ Road Glide® ST is structured to deliver consistent power and rider feedback across a range of environments. Each component is measured and configured with the singular goal of maximizing control, responsiveness, and mechanical efficiency.
Milwaukee-Eight® 121 High Output Engine
The central feature of the 2025 Harley-Davidson® CVO™ Road Glide® ST is its Milwaukee-Eight® 121 High Output V-Twin engine. With 121 cubic inches of displacement and high-performance tuning, this engine produces the most torque and horsepower available in any Harley-Davidson® touring model. The air- and oil-cooled system has been optimized for sustained output, with revised intake and exhaust flow paths designed to reduce backpressure and improve volumetric efficiency. Camshaft profiles have been reworked to provide strong low-end torque with extended power through the upper rev range.
The drivetrain integrates seamlessly with a six-speed transmission engineered to deliver gear changes with minimal lag or mechanical intrusion. The final drive ratio is calibrated for improved roll-on acceleration while maintaining engine stability during highway cruising.
Chassis Optimization and Mass Reduction
One of the defining attributes of the 2025 Harley-Davidson® CVO™ Road Glide® ST is its weight-conscious construction. Harley-Davidson® incorporated carbon fiber and titanium components throughout the build. The carbon fiber wheels serve dual functions by decreasing rotational inertia and improving brake performance through reduced thermal retention.
Titanium exhaust headers play a similar role, offering structural durability with lower thermal transfer rates and significantly reduced weight. The swingarm, frame, and front fork assembly have all been reconfigured for rigidity without unnecessary material bulk.
Suspension and Braking Systems
The front suspension uses a SHOWA® 47mm inverted fork, engineered for improved stiffness and precise damping. This configuration enhances steering input and front-end feedback, especially at higher speeds or under heavy braking. The rear utilizes an emulsion shock setup with hydraulic preload adjustment.
Braking is managed by a Brembo® system, including dual front discs with radial-mounted four-piston calipers.
Aerodynamic Development
The sharknose fairing on the 2025 Harley-Davidson® CVO™ Road Glide® ST has been refined through computational fluid dynamics modeling and wind tunnel testing. The design minimizes aerodynamic drag while maintaining airflow to key components. Adjustable air vanes are integrated into the lower fairing to manage turbulence around the rider and improve long-distance comfort.
Wind deflection is further controlled through a reshaped windshield and optimized bodywork transitions. The frame-mounted fairing maintains structural independence from the front fork, reducing steering input distortion caused by crosswinds or passing vehicles. The lighting system is fully integrated into the aerodynamic profile, using LED elements that are recessed into the fairing for reduced drag and improved visibility.
Ergonomics for Precision Control
The rider triangle has been revised to support a forward-leaning posture. The seat height and positioning provide optimal hip-to-peg distance for control during aggressive inputs. Mid-mounted controls and lower-positioned handlebars allow the rider to maintain weight balance and upper-body engagement without compromising access to controls.
The solo seat design is contoured to hold the rider in a fixed position during acceleration and cornering. The seat material and foam density are tuned for both support and vibration dampening.
Infotainment and Control Systems
The 2025 Harley-Davidson® CVO™ Road Glide® ST features the Skyline™ OS, operated through a 12.3-inch color TFT display. The system supports multiple interface configurations, allowing the rider to choose layouts that prioritize speed, RPM, navigation, or system diagnostics.
The display also includes data such as lean angle, tire pressure monitoring, and ride mode status. The interface is responsive to both touch and voice commands when used with compatible headsets. Riders can control audio playback, navigation input, and phone integration without disengaging from primary controls.
Rider aids include a full suite of electronically managed features. These include cornering ABS, traction control, drag-torque slip control, and ride modes that adjust throttle sensitivity, engine braking, and intervention levels.
Visit Harley-Davidson® of New Port Richey at Homosassa, FL
To experience the 2025 Harley-Davidson® CVO™ Road Glide® ST, visit Harley-Davidson® of New Port Richey near Homosassa, FL. Riders can schedule a test ride to evaluate the throttle response, braking dynamics, and chassis feedback firsthand. A test ride is an opportunity to review the Milwaukee-Eight® 121 High Output engine’s performance and assess how the reworked ergonomics interact with the road. Our team is available to answer technical questions and walk through the specifications in person. Schedule your test ride today and experience the precision engineering behind this performance-focused touring machine.