The 2026 Harley-Davidson® CVO™ Street Glide® ST is engineered as a performance-oriented touring motorcycle that combines high-output power, advanced chassis construction, integrated rider technology, and modern control systems. This model uses a long and stable platform with a total length of 94.9 inches, an overall width of 38.6 inches, and an overall height of 52.4 inches, creating a balanced touring stance with aerodynamic efficiency and predictable handling. Laden seat height measures 27.5 inches, while unladen seat height is approximately 29.1 inches, supporting confident rider positioning and control at various speeds. The motorcycle maintains a 64-inch wheelbase paired with a 26-degree steering rake and a 6.7-inch trail measurement, giving the chassis consistent directional stability during highway travel and a controlled response in cornering situations. Static ground clearance measures 5.3 inches, allowing controlled lean performance while maintaining practical touring usability.
Weight specifications further define the platform’s capabilities. The motorcycle weighs approximately 782 pounds as shipped and 816 pounds in running order. The gross vehicle weight rating reaches 1,360 pounds, supporting passenger and cargo loading while maintaining structural reliability. Fuel capacity measures 6 gallons, supported by a 1-gallon reserve warning capacity, allowing extended riding intervals without frequent refueling. A luggage volume of 2.42 cubic feet provides integrated storage for touring needs without compromising handling balance or frame rigidity.
Engine Performance and Mechanical Specifications
The engine configuration of the 2026 Harley-Davidson® CVO™ Street Glide® ST centers on the Milwaukee-Eight® 121 High Output powerplant. This engine produces 121 cubic inches of displacement, equivalent to 1,977 cc, and uses a bore measurement of 4.075 inches paired with a 4.625-inch stroke. The compression ratio is rated at 11.4:1, designed to balance efficient combustion with strong torque delivery. Performance figures indicate an output of approximately 127 horsepower at 4,900 rpm and 145 ft-lb of torque at 4,000 rpm. The torque curve supports sustained acceleration and predictable response during highway merges, two-up riding, and loaded touring situations.
The valve train uses pushrod-operated overhead valves with hydraulic, self-adjusting lifters. Each cylinder incorporates four valves, improving airflow efficiency and minimizing maintenance requirements related to valve adjustment. Fuel delivery relies on Electronic Sequential Port Fuel Injection, which maintains consistent fueling accuracy across varying riding conditions and throttle inputs. A washable fiberglass air cleaner contributes to long-term serviceability, while the pressurized dry-sump lubrication system supports engine cooling and mechanical durability during extended riding periods. Exhaust configuration consists of a 2-1-2 dual exhaust with tapered mufflers, designed to support exhaust flow consistency while integrating with the motorcycle’s touring-oriented design.
Transmission and Drivetrain Engineering
Power from the engine transfers through a 6-Speed Cruise Drive® transmission, configured for efficient power distribution across a wide speed range. Gear ratios are structured to support both low-speed control and comfortable highway cruising. The first gear ratio is 10.233, followed by progressively closer ratios through second, third, fourth, and fifth gears. Sixth gear maintains a ratio of 3.067, reducing engine speed during long-distance travel and supporting steady cruising efficiency.
The primary drive uses a chain system with a 34/46 ratio, while final drive power reaches the rear wheel through a belt system with a 30/68 ratio. This drivetrain arrangement reduces maintenance frequency compared to traditional chain-only systems while maintaining smooth power application. Clutch operation uses a mechanically actuated 10-plate wet Assist and Slip design, contributing to smoother downshifts and controlled engagement during aggressive braking or rapid gear transitions. Combined, the drivetrain components provide stable power transfer across a wide range of riding conditions.
Chassis Architecture and Suspension Function
The frame structure uses mild steel tubular construction with a two-piece stamped and welded backbone. Cast and forged junctions reinforce critical stress points, while twin down-tubes and a bolt-on rear frame design support rigidity and service accessibility. The swingarm follows a two-piece welded structure with forged junctions, creating predictable rear-wheel alignment under acceleration and braking forces.
Front suspension employs 47 mm inverted forks featuring adjustable preload, compression damping, and rebound damping. This setup allows riders to adapt suspension response based on riding style or load conditions. Rear suspension uses an emulsion-style configuration with matching adjustments for preload, compression, and rebound damping. Suspension travel measures 4.6 inches at the front and 3 inches at the rear, balancing touring comfort with controlled feedback during cornering and braking.
Wheel construction consists of black 7-spoke cast aluminum designs. Front wheel diameter measures 19 inches with a width of 3.5 inches, while the rear wheel measures 18 inches with a width of 5 inches. Tire specifications include a Dunlop® Harley-Davidson® Series D408F front tire sized 130/60B19 and a D407T rear tire sized 180/55B18. These combinations support stable grip characteristics and controlled handling across different road surfaces.
Brake Components and Electronic Control Systems
Braking performance relies on dual radial-mounted 4-piston fixed front calipers and a single axial-mounted rear caliper. Front brakes use dual floating wave-style rotors measuring 12.6 inches in diameter with a thickness of 0.18 inches. The rear rotor measures 11.8 inches in diameter with a thickness of 0.28 inches. This configuration improves braking consistency and heat management during repeated deceleration events.
Electronic rider control systems are integrated to support predictable braking and traction control. Standard safety systems include Anti-lock Braking System, Electronic Linked Braking, Traction Control System, Drag-torque Slip Control System, Vehicle Hold Control, and Tire Pressure Monitoring System. Cornering-specific enhancements include Cornering Anti-lock Braking, Cornering Electronic Linked Braking, Cornering Traction Control, and Cornering Drag-Torque Slip Control. These systems adjust braking and traction response based on lean angle and riding input, assisting in maintaining stability during turns or changing road conditions. Lean angle capacity is rated at 31 degrees to both the right and left sides, supporting balanced cornering geometry.
Electrical System and Integrated Lighting
The electrical system supports both performance and technology requirements. A sealed maintenance-free 12V battery rated at 28 amp-hours and 405 cold-cranking amps powers ignition and onboard systems. Charging capability comes from a three-phase 58-amp system providing up to 754 watts at 13 volts. Starting functionality uses a 1.6 kW electric starter motor with solenoid shift engagement, supporting reliable ignition performance.
Lighting systems use LED technology throughout. Headlamps, tail lamps, stop lights, and turn signals are all LED-based, enhancing visibility and durability while reducing energy consumption. Digital gauges are integrated into the display interface, combining critical riding information into a centralized viewing area. A USB-C 15-watt power outlet located in the media storage compartment enables accessory charging and device integration during operation.
Infotainment and Connectivity Systems
The motorcycle uses the Skyline™ OS infotainment platform displayed through a 12.3-inch full-color TFT screen. The display integrates vehicle data, navigation functions, media playback, and communication features. Audio output provides 125 watts per channel through two fairing-mounted 6.5-inch speakers, supporting consistent sound clarity at higher speeds.
Connectivity options include Bluetooth® integration for phones, media devices, and headset communication. Apple CarPlay® compatibility supports wired or wireless connection methods, allowing mobile device integration through the infotainment system. Navigation functionality is embedded within the platform, while USB-C and smartphone connections support media playback and system interaction through compatible adapters. Vehicle information displays include air temperature, oil pressure, and engine idle temperature management system indicators, keeping operational data accessible during rides.
Fuel Efficiency and Operating Capacity
Fuel economy is estimated at approximately 44 mpg under combined city and highway testing methods. This efficiency level, combined with the 6-gallon fuel tank, supports extended riding range suitable for long-distance touring applications. Oil capacity measures 5 quarts with a filter, transmission capacity is 1 quart, primary chain case capacity measures approximately 1.1 quarts, and coolant capacity is 0.82 quarts. These capacities contribute to consistent thermal management and drivetrain lubrication across extended operating periods.
Visit Harley-Davidson® of New Port Richey near Brooksville, FL
Riders interested in evaluating the technical capabilities of the 2026 Harley-Davidson® CVO™ Street Glide® ST can arrange a detailed demonstration ride through Harley-Davidson® of New Port Richey near Brooksville, FL. A scheduled ride allows direct evaluation of the 121 High Output engine, adjustable suspension components, and advanced rider safety systems under controlled conditions. The test ride also allows riders to assess infotainment functionality, digital instrumentation, and braking response during operation. Our team can explain the technical configuration and system integration while you experience the motorcycle’s performance characteristics firsthand. Contact the dealership to schedule a test ride and examine how the engineering specifications translate into riding performance.
