The 2026 Harley-Davidson® CVO™ Road Glide® ST combines high-output V-twin performance, performance-oriented chassis engineering, advanced rider technology, and integrated electronic control systems in a premium touring platform. The motorcycle uses the Milwaukee-Eight® 121 High Output engine paired with a 6-Speed Cruise Drive® transmission and a collection of standard rider assistance systems designed for touring stability and responsive handling. The model also incorporates a large TFT infotainment display, embedded navigation capability, adjustable suspension components, and a fixed sharknose fairing configuration associated with the 2026 Harley-Davidson® CVO™ Road Glide® ST platform.
Milwaukee-Eight® 121 High Output Engine Configuration
The 2026 Harley-Davidson® CVO™ Road Glide® ST uses the Milwaukee-Eight® 121 High Output engine with a displacement of 121 cubic inches, or 1,977 cc. The engine uses a bore measuring 4.075 inches and a stroke measuring 4.6 inches. The compression ratio is rated at 11.4:1. The configuration uses pushrod-operated overhead valves with hydraulic self-adjusting lifters and four valves per cylinder.
Fuel delivery comes through Electronic Sequential Port Fuel Injection. This system manages fuel distribution electronically to support throttle response and operating consistency across different riding conditions. The engine also uses a fiberglass washable air cleaner and a pressurized dry-sump lubrication system.
The motorcycle produces 145 ft-lb of torque at 4,000 rpm and 127 horsepower at 4,900 rpm. These performance figures place the motorcycle within the high-performance touring category. Torque delivery is designed to support strong acceleration during highway merging, passing maneuvers, and loaded touring operations.
The exhaust system uses a 2-1-2 dual exhaust configuration with tapered mufflers. This setup supports balanced exhaust flow while maintaining the touring layout of the motorcycle. Cooling capacity is listed at 0.82 quarts, while oil capacity with filter is rated at 5 quarts.
Transmission and Drivetrain Specifications
The drivetrain uses a 6-Speed Cruise Drive® transmission. Primary drive operation uses a chain system with a 34/46 ratio, while final drive operation uses a belt system with a 30/68 ratio. Clutch operation uses a mechanically actuated 10-plate wet Assist and Slip clutch.
The Assist and Slip clutch system is designed to reduce clutch lever effort while helping manage rear-wheel behavior during downshifts. This configuration supports a smoother transition between gears and improved control during deceleration.
Overall gear ratios are rated at 10.233 in first gear, 7.093 in second gear, 5.268 in third gear, 4.266 in fourth gear, 3.635 in fifth gear, and 3.067 in sixth gear. The gearing structure supports acceleration in lower gears while allowing reduced engine speed during highway travel in sixth gear.
Chassis Structure and Frame Engineering
The frame uses mild steel construction with a tubular layout and a two-piece stamped and welded backbone. Cast and forged junctions are integrated into the structure along with twin down-tubes and a bolt-on rear frame section with forged fender supports. The frame uses MIG welding throughout key structural areas.
The swingarm also uses mild steel construction with a two-piece drawn and welded section combined with forged junctions and MIG welding. This structure is designed to support touring loads while maintaining chassis rigidity during cornering and braking.
The wheelbase measures 64 inches. Rake angle is rated at 26 degrees with a 29.25-degree fork angle and 6.7 inches of trail. Static ground clearance measures 5.1 inches. Laden seat height is rated at 27.5 inches, while unladen seat height measures 28.3 inches. Overall motorcycle length is 94.9 inches with an overall width of 36.4 inches and an overall height of 50.4 inches.
Adjustable Suspension Components
Front suspension uses 47 mm inverted 1x1 front forks equipped with adjustable preload, compression damping, and rebound damping. These adjustment functions allow riders to tune front suspension characteristics for load conditions, road surfaces, and handling preferences.
Rear suspension uses an emulsion suspension system with adjustable preload, compression damping, and rebound damping. Suspension travel measures 4.6 inches in the front and 3 inches in the rear.
The adjustable suspension package is intended to support touring comfort while maintaining handling precision during aggressive riding inputs and directional changes. The combination of inverted forks and adjustable rear suspension reflects the motorcycle’s performance-focused touring configuration.
Wheel and Tire Dimensions
The 2026 Harley-Davidson® CVO™ Road Glide® ST uses black 7-spoke cast aluminum wheels. The front wheel diameter measures 19 inches with a width of 3.5 inches. The rear wheel diameter measures 18 inches with a width of 5 inches.
The motorcycle uses Dunlop® Harley-Davidson® Series bias blackwall tires. The front tire specification is 130/60B19 M/C 61H using the D408F model. Rear tire specification is 180/55B18 M/C 80H using the D407T model.
Lean angle capability measures 31 degrees on both the right and left sides. These figures support cornering capability while maintaining the touring platform’s ground clearance limitations.
Braking Hardware and Electronic Brake Systems
Front braking uses dual radial-mounted fixed 4-piston calipers combined with dual floating wave-style rotors. The front rotor diameter measures 12.6 inches with a thickness of 0.18 inches. Rear braking uses a single axial-mounted caliper with a fixed rotor measuring 11.8 inches in diameter and 0.28 inches thick.
Anti-lock Braking System is standard equipment. Electronic Linked Braking is also included. These systems are designed to manage brake force distribution and wheel slip under different riding conditions.
Cornering Enhanced Anti-lock Brake System and Cornering Enhanced Electronic Linked Braking are included as part of the motorcycle’s electronic rider support package. These systems use motorcycle lean-angle input to modify brake intervention during cornering operations.
The motorcycle also includes the Traction Control System, Cornering Enhanced Traction Control System, Drag-torque Slip Control System, and Cornering Drag-torque Slip Control System. These electronic systems are intended to manage rear-wheel traction and engine braking behavior during acceleration and deceleration.
Vehicle Hold Control is included to assist with temporary brake hold operation during incline starts. Tire Pressure Monitoring System is also standard equipment and provides tire pressure information through the motorcycle display interface.
Electrical System and Lighting Configuration
The electrical system uses a sealed maintenance-free 12-volt battery rated at 28 amp-hours and 405 cold-cranking amps. Charging capability comes from a three-phase 58-amp system producing a maximum of 754 watts at 13 volts.
Starting operation uses a 1.6 kW electric starter with solenoid shift starter motor engagement. Lighting components use LED technology throughout the motorcycle. The headlamp, tail and stop lamp, front signal lamps, and rear turn signals all use LED units.
Digital gauges are integrated within the display system. The motorcycle also includes a 15-watt USB-C electric power accessory port located in the media storage compartment.
Skyline™ OS Infotainment Platform
The infotainment system uses Skyline™ OS integrated with a 12.3-inch full-color TFT display. Audio output is rated at 125 watts per channel. The system uses two 6.5-inch fairing-mounted speakers.
AM and FM radio capabilities are standard. USB connectivity supports SD card, flash drive, and MP3 compatibility through USB connection. Bluetooth® functionality supports hands-free mobile phone operation along with Bluetooth® media player and headset integration.
Apple CarPlay® compatibility is available through wireless or wired connection. The USB-C and smartphone connection interface located in the inner fairing storage compartment supports multiple device configurations through compatible adapters.
The system also includes rider and passenger intercom capability with separately sold Harley-Davidson® headsets. VOX functionality is available for compatible headsets.
Vehicle information display capability includes air temperature, oil pressure, and EITMS information. Text-to-speech language capability matches available language settings within the infotainment system.
Embedded Navigation and Connectivity Features
The motorcycle includes an embedded GPS navigation system integrated within the infotainment display. Navigation capability includes traffic and weather information through Wi-Fi hotspot connection with required subscription support in the United States.
Integrated navigation reduces dependence on external navigation hardware and centralizes route guidance within the motorcycle display system. Bluetooth® connectivity also supports navigation-related communication functions between compatible devices and the infotainment interface.
Fuel Capacity and Operating Specifications
Fuel capacity measures 6 gallons with a 1-gallon reserve fuel warning indication integrated through the fuel injection system. Estimated fuel economy is rated at 44 mpg based on city and highway testing estimates.
Transmission capacity is rated at 1 quart, while primary chain case capacity measures 1.1 quarts. These fluid capacities support drivetrain lubrication and operating efficiency during extended touring use.
Weight as shipped is listed at 800 pounds, while the running order weight measures 838 pounds. Gross Vehicle Weight Rating is rated at 1,360 pounds. Front Gross Axle Weight Rating is listed at 500 pounds, and rear Gross Axle Weight Rating is listed at 927 pounds.
Luggage storage volume measures 2.42 cubic feet. This capacity supports storage requirements associated with long-distance touring and daily riding use.
Visit Harley-Davidson® of Wesley Chapel for a Test Ride
Riders interested in examining the technical features of the 2026 Harley-Davidson® CVO™ Road Glide® ST can schedule a test ride with Harley-Davidson® of Wesley Chapel near Zephyrhills, FL. A test ride provides an opportunity to evaluate the Milwaukee-Eight® 121 High Output engine, adjustable suspension components, braking systems, and integrated rider technology during normal riding conditions. The motorcycle’s infotainment interface, navigation functions, and electronic rider assistance systems can also be reviewed directly during operation. Our team can provide detailed information regarding drivetrain specifications, chassis configuration, display functionality, and rider safety technology. Riders can also compare seating position, throttle response, braking feel, and suspension adjustment characteristics during the test ride experience.
