The 2026 Harley-Davidson® CVO™ Street Glide® ST combines high-displacement V-twin performance, advanced rider assistance systems, adjustable suspension components, and integrated touring technology within a performance-oriented touring platform. The motorcycle uses the Milwaukee-Eight® 121 High Output engine paired with a 6-Speed Cruise Drive® transmission and a chassis designed for long-distance operation and controlled handling. The model also integrates multiple electronic rider safety systems, a full-color infotainment display, and embedded navigation functionality. Its specifications place it within the premium touring category while maintaining a strong focus on engine output, chassis balance, and rider interface technology.
Milwaukee-Eight® 121 High-Output Engine Configuration
The 2026 Harley-Davidson® CVO™ Street Glide® ST is powered by the Milwaukee-Eight® 121 High Output engine. This engine has a displacement of 121 cubic inches, or 1,977 cc. The bore measures 4.075 inches, and the stroke measures 4.625 inches. The engine uses pushrod-operated overhead valves with hydraulic self-adjusting lifters and four valves per cylinder. This valve configuration supports airflow efficiency and sustained engine operation across varying rpm ranges.
The compression ratio is rated at 11.4:1. Fuel delivery is managed through Electronic Sequential Port Fuel Injection, commonly identified as ESPFI. The fuel injection system supports controlled fuel metering and throttle response during acceleration and highway-speed operation. The motorcycle uses a pressurized dry-sump lubrication system, which separates oil storage from the crankcase to improve lubrication consistency during extended riding conditions.
Air intake is managed through a fiberglass, washable air cleaner. Exhaust flow moves through a 2-1-2 dual exhaust system with tapered mufflers. This exhaust configuration supports balanced exhaust routing and contributes to the motorcycle’s overall performance profile.
The engine produces a certified 145 ft-lb of torque at 4,000 rpm and 127 horsepower at 4,900 rpm. These output figures support strong acceleration characteristics, sustained highway cruising, and carrying capacity for touring applications.
Six-Speed Cruise Drive® Transmission and Drivetrain Components
The drivetrain configuration uses a 6-Speed Cruise Drive® transmission. The transmission provides six forward gear ratios designed to support low-speed maneuverability and reduced engine rpm during highway operation. The overall first-gear ratio is 10.233. Second gear is rated at 7.093, third gear at 5.268, fourth gear at 4.266, fifth gear at 3.635, and sixth gear at 3.067.
Primary drive operation uses a chain with a 34/46 ratio. Final drive power transfers through a belt-driven system using a 30/68 ratio. This configuration supports reduced maintenance requirements compared to fully chain-driven touring systems while maintaining smooth power transfer characteristics.
The motorcycle uses a mechanically actuated 10-plate wet clutch with Assist and Slip functionality. The assist mechanism reduces clutch lever effort during operation, while the slip function helps control rear-wheel behavior during aggressive downshifting or rapid deceleration conditions.
Touring Dimensions and Structural Specifications
The 2026 Harley-Davidson® CVO™ Street Glide® ST measures 94.9 inches in overall length and 38.6 inches in overall width. Overall height measures 52.4 inches. The laden seat height is 27.5 inches, while the unladen seat height measures 29.1 inches. Static ground clearance is listed at 5.3 inches.
The motorcycle has a wheelbase of 64 inches. Steering geometry includes a 26-degree rake angle and a 29.25-degree fork angle. Trail measurement is 6.7 inches. These dimensions contribute to directional stability during highway operation and support predictable steering behavior during cornering transitions.
Weight as shipped is listed at 782 pounds. Running order weight is 816 pounds. Gross Vehicle Weight Rating is 1,360 pounds. The front Gross Axle Weight Rating is 500 pounds, and the rear Gross Axle Weight Rating is 927 pounds. Luggage capacity measures 2.42 cubic feet, supporting extended touring functionality and storage capability.
Chassis Construction and Suspension Calibration
The frame uses a mild-steel tubular structure with a two-piece stamped and welded backbone. Cast and forged junctions are integrated throughout the chassis, along with twin down tubes and a bolt-on rear frame section with forged fender supports. Construction utilizes MIG welding methods for frame assembly.
The swingarm also uses mild-steel construction with a two-piece drawn and welded section and forged junction components. This structural design supports chassis rigidity and load management during touring operation.
Front suspension consists of 47 mm inverted 1x1 front forks. The front forks include adjustable preload, compression damping, and rebound damping. Rear suspension uses emulsion shocks with adjustable preload, compression damping, and rebound damping. This adjustability allows suspension tuning based on rider load, passenger weight, luggage capacity, and road conditions.
Front suspension travel measures 4.6 inches. Rear suspension travel measures 3 inches. Combined with the touring chassis geometry, these suspension specifications support highway stability and cornering control.
Wheel Design, Tire Specifications, and Lean Angle Measurements
The 2026 Harley-Davidson® CVO™ Street 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.
Front tire specification is a Dunlop® Harley-Davidson® Series D408F tire in 130/60B19 M/C 61H sizing. Rear tire specification is a Dunlop® Harley-Davidson® Series D407T tire in 180/55B18 M/C 80H sizing. These tire dimensions support touring stability, braking consistency, and cornering grip.
Lean angle testing follows SAE J1168 methodology. The motorcycle achieves a 31-degree lean angle on both the right and left sides. Combined with the chassis geometry and suspension adjustability, these measurements support controlled cornering capability within the touring segment.
Brake System Engineering and Electronic Rider Controls
The front braking system uses dual 4-piston fixed radial-mounted calipers. The rear braking system uses a single axial-mounted caliper. Front brake rotors use a wave-style floating design with a diameter of 12.6 inches and a thickness of 0.18 inches. The rear rotor measures 11.8 inches in diameter with a thickness of 0.28 inches.
Anti-lock Braking System functionality is standard equipment on the motorcycle. Electronic Linked Braking is also included, allowing braking force distribution between front and rear systems during operation.
The rider assistance package includes Traction Control System functionality and Drag-Torque Slip Control System integration. Vehicle Hold Control is included to assist with stationary positioning on inclined surfaces. Tire Pressure Monitoring System functionality continuously monitors tire inflation levels during operation.
Cornering-enhanced rider safety technologies are integrated into the motorcycle’s electronic control systems. These systems include Cornering Enhanced ABS, Cornering Enhanced Electronic Linked Braking, Cornering Enhanced Traction Control System, and Cornering Drag-Torque Slip Control System. These technologies use lean-angle data to modify braking and traction responses during cornering conditions.
Electrical System and LED Lighting Configuration
The 2026 Harley-Davidson® CVO™ Street Glide® ST uses a sealed, maintenance-free 12-volt battery rated at 28 amp-hours with 405 cold-cranking amps. Charging output is supplied through a three-phase 58-amp system capable of producing a maximum of 754 watts at 13 volts.
Engine starting is managed through a 1.6 kW electric starter system with solenoid shift starter motor engagement. The electrical system supports the motorcycle’s infotainment platform, integrated display, navigation functionality, rider assistance systems, and LED lighting components.
Lighting systems include LED headlamps, LED tail and stop lamps, LED front signal lamps, and LED rear turn signals. LED lighting technology supports lower electrical demand and improved lighting consistency during operation.
The 2026 Harley-Davidson® CVO™ Street Glide® ST also includes a 15-watt USB-C electric power accessory port located within the media storage compartment. This port supports charging capability for compatible electronic devices during travel.
Skyline™ OS Infotainment and Integrated Rider Interface
The infotainment system operates through Skyline™ OS and uses a 12.3-inch full-color TFT display. The display integrates digital instrumentation and vehicle information into a centralized rider interface. Gauges are incorporated directly into the screen layout, reducing the need for separate analog instrumentation.
Audio output is rated at 125 watts per channel. Audio delivery is managed through two 6.5-inch fairing-mounted speakers. The system includes standard AM and FM radio functionality. Bluetooth® connectivity supports phone integration, media playback, and headset communication capability.
The motorcycle supports Apple CarPlay® through wired or wireless connectivity. USB-C and MTP smartphone integration are also supported through the inner fairing storage connection. Navigation functionality is embedded within the system and includes traffic and weather support through Wi-Fi hotspot capability, where subscription services apply.
The Vehicle Information Screen displays operating information, including air temperature, oil pressure, and Engine Idle Temperature Management System data. Text-to-Speech functionality is also integrated into the infotainment system.
Fuel Capacity and Operational Efficiency
Fuel capacity is rated at 6 gallons, with a reserve fuel capacity of 1 gallon connected to the fuel injection warning system. Estimated fuel economy is listed at 44 mpg based on estimated city and highway testing methods.
Oil capacity with filter is 5 quarts. Transmission capacity measures 1 quart, while primary chain case capacity measures 1.1 quarts. Coolant capacity is rated at 0.82 quart. These capacities support long-distance touring operation and scheduled maintenance intervals.
Schedule a Test Ride at Harley-Davidson® of Panama City Beach
Riders interested in examining the technical specifications and integrated touring systems of the 2026 Harley-Davidson® CVO™ Street Glide® ST can visit Harley-Davidson® of Panama City Beach near Lynn Haven, FL. A scheduled test ride provides an opportunity to evaluate the Milwaukee-Eight® 121 High Output engine, the adjustable suspension system, and the electronic rider assistance technologies during operation. The Skyline™ OS infotainment system, integrated TFT display, and embedded navigation platform can also be reviewed directly from the rider interface. Our team can provide detailed information regarding chassis configuration, braking systems, drivetrain operation, and touring functionality. Contact our dealership to arrange a test ride appointment and review the motorcycle’s specifications in person.
