The 2025 Harley-Davidson® CVO™ Road Glide® ST brings race-inspired technology and advanced engineering to the street with a design rooted in competition-grade principles. This model takes significant technical strides, incorporating lightweight materials, a high-output engine, and sophisticated electronic systems that prioritize control and adaptability. Every component is engineered to deliver a riding experience that emphasizes handling, power, and rider confidence.
Powertrain Engineering: Milwaukee-Eight® 121 High Output V-Twin
The Milwaukee-Eight® 121 High Output engine gives the 2025 Harley-Davidson® CVO™ Road Glide® ST its place at the top of the brand’s production lineup, delivering 127 horsepower and 145 lb-ft of torque. Engineered with a high-performance camshaft and a forward-mounted Heavy Breather Intake, the setup supports increased airflow and combustion efficiency. A raised rev limit of 5,900 rpm expands the usable powerband, allowing stronger acceleration through higher engine speeds.
The powertrain’s efficiency is complemented by lightweight titanium mufflers that reduce backpressure while producing a consistent exhaust rumble. These mufflers contribute to better flow and performance without adding unnecessary weight.
Weight Reduction and Structural Components
A key feature of this model is the extensive use of lightweight materials, reflecting its racing lineage. The front fender is constructed from forged carbon fiber, replacing the heavier steel fender found on traditional models. This substitution reduces unsprung weight, directly affecting handling precision and responsiveness. The carbon fiber fender also features a high-end finish that aligns with the overall design language of the bike.
The wheels are crafted from cast aluminum, chosen for their strength-to-weight ratio and ability to reduce rotational mass. This choice improves maneuverability and reduces the effort required for quick directional changes. The wheels are paired with dual floating brake rotors designed to maintain effective heat dissipation during prolonged braking, improving reliability and brake fade resistance.
Suspension Setup: Adjustable Precision for Varied Conditions
The suspension system on the 2025 Harley-Davidson® CVO™ Road Glide® ST is designed for detailed customization to suit different rider preferences and road conditions. The front suspension consists of SHOWA® 47mm inverted forks with 4.6 inches of travel. These forks provide full adjustability for compression, rebound, and preload, allowing precise tuning for stability and ride quality.
At the rear, the motorcycle uses dual outboard SHOWA® Remote Reservoir shocks with three inches of travel. These shocks separate oil and gas within their reservoirs to maintain consistent damping performance throughout extended rides and variable terrain. The position of the shocks between the saddlebags and the rear fender contributes to balanced weight distribution and improved suspension response.
Braking Systems and Rider Assistance
The braking system incorporates Brembo® components, well-regarded for their stopping power and modulation. Dual floating rotors in the front paired with matched rear brakes deliver controlled and consistent deceleration. The bike includes an Anti-lock Brake System (ABS) designed to prevent wheel lockup during aggressive braking, particularly on slick or uneven surfaces.
The model also integrates Electronic Linked Braking (ELB), which applies braking force to both wheels simultaneously when the front lever or rear pedal is engaged, depending on riding conditions. This system enhances overall brake efficiency and balance, reducing stopping distances while maintaining control.
Advanced Electronics and Display Interface
The 2025 Harley-Davidson® CVO™ Road Glide® ST features a 12.3-inch TFT touchscreen display that serves as the primary interface for the rider. The screen operates on Skyline™ OS, providing clear visibility of vital information, including speed, engine performance, ride modes, navigation with traffic updates, and weather conditions. This digital dashboard also controls the integrated Rockford Fosgate® Stage II audio system.
Eight distinct ride modes are available to the rider, allowing adjustment of throttle response, traction control, and ABS settings to match specific riding conditions. Notably, Track and Track+ modes deliver configurations intended for closed-course or race environments, emphasizing performance-oriented control adjustments.
Rider Safety Enhancements: Integrated Systems for Stability
The motorcycle’s safety technology is designed to assist in maintaining stability during various riding scenarios, particularly during cornering and sudden deceleration. Cornering Anti-lock Braking System (C-ABS) adjusts brake pressure based on lean angle to prevent wheel lock while the bike is leaned over, maintaining intended direction and rider control.
Complementing this, Cornering Electronic Linked Braking (C-ELB) modifies front and rear brake pressure distribution during turns, improving handling balance. The Cornering Traction Control System (C-TCS) helps prevent rear-wheel spin during acceleration through corners by adjusting engine power output.
The Drag-Torque Slip Control System (DSCS) reduces rear wheel slip caused by sudden downshifts or throttle changes, especially on slippery surfaces, and is adjusted dynamically based on lean angle to maintain grip and stability.
Vehicle Hold Control (VHC) is another practical addition, holding the bike stationary on inclines without requiring continuous brake application from the rider. This feature simplifies hill starts and prevents rollback on ramps and slopes.
The Tire Pressure Monitoring System (TPMS) continuously checks tire pressure, alerting the rider to deviations that could affect safety or performance.
Ergonomics and Control Features
The seating configuration features a solo seat engineered for rider support during aggressive maneuvers. The seat’s steep backrest angle enhances lower-back support and helps maintain rider position during acceleration and cornering.
Foot controls use mini floorboards designed to provide firm footing without restricting lean angle. The adjustable P&A tall risers paired with Moto-Bar handlebars enable riders to customize their riding posture for optimal control and comfort, adapting to different preferences or ride scenarios. The Flat-Out engine guard protects the bike from damage in low-speed tip-overs without adding excessive bulk.
Fuel Efficiency and Practical Performance
Despite its performance-focused design, the 2025 Harley-Davidson® CVO™ Road Glide® ST achieves a fuel economy rating of approximately 44 miles per gallon. This balance supports both extended trips and urban riding without frequent refueling, aligning with the bike’s role as a versatile performance machine.
Visit Stubbs Harley-Davidson® for a Test Ride
Riders looking to assess high-performance touring dynamics will find value in testing the 2025 Harley-Davidson® CVO™ Road Glide® ST under real conditions. From cornering precision to throttle response, this model is built around riding control and stability. Its Milwaukee-Eight® 121 High Output engine, adjustable suspension, and electronic rider aids work together in ways that specs alone can't convey. Stubbs Harley-Davidson® near Missouri City, TX, offers the opportunity to engage with this model directly. A scheduled test ride will provide firsthand insight into how its systems respond to the demands of the road.