The 2026 Harley-Davidson® CVO™ Street Glide® ST combines large-displacement V-twin performance, touring-focused chassis engineering, advanced rider assistance systems, and integrated infotainment technology in a factory-built bagger platform. The motorcycle uses the Milwaukee-Eight® 121 High Output engine paired with a 6-Speed Cruise Drive® transmission and a performance-oriented suspension configuration. Technical specifications include 127 horsepower at 4,900 rpm and 145 ft-lb of torque at 4,000 rpm. The model also incorporates cornering-enhanced rider safety systems, a 12.3-inch TFT display, integrated navigation capability, and adjustable suspension components designed for long-distance operation and controlled handling.
The 2026 Harley-Davidson® CVO™ Street Glide® ST measures 94.9 inches in overall length with a wheelbase of 64 inches. Overall width measures 38.6 inches, and overall height measures 52.4 inches. Laden seat height is listed at 27.5 inches, while unladen seat height measures 29.1 inches. Static ground clearance measures 5.3 inches. The steering geometry includes a 26-degree rake angle, 29.25-degree fork angle, and 6.7 inches of trail. These measurements support directional stability during highway operation while maintaining controlled steering input during low-speed maneuvers and corner entry.
Milwaukee-Eight® 121 High Output Engine Specifications
The Milwaukee-Eight® 121 High Output engine uses a displacement of 121 cubic inches, equivalent to 1,977 cc. Bore measures 4.075 inches, and stroke measures 4.625 inches. Compression ratio is rated at 11.4:1. The engine configuration uses pushrod-operated overhead valves with hydraulic self-adjusting lifters and four valves per cylinder. This design supports airflow efficiency while reducing the need for periodic valve adjustment procedures.
Fuel delivery is managed through Electronic Sequential Port Fuel Injection. The fuel system is calibrated to support consistent throttle response and controlled fuel metering across varying operating conditions. The engine also uses a fiberglass washable air cleaner, which supports airflow management and serviceability.
The lubrication system uses a pressurized dry-sump configuration. Dry-sump lubrication systems separate oil storage from the crankcase and help maintain oil circulation during acceleration, braking, and extended highway operation. Exhaust flow is managed through a 2-1-2 dual exhaust system with tapered mufflers.
Performance figures include 127 horsepower and 95 kW at 4,900 rpm. Maximum torque is rated at 145 ft-lb, or 197 Nm, at 4,000 rpm using J1349 testing methodology. The engine configuration supports strong low- and mid-range acceleration characteristics suited for touring applications, highway passing, and sustained cruising speeds.
Six-Speed Drivetrain and Power Transfer Systems
The drivetrain uses a 6-Speed Cruise Drive® transmission designed for touring efficiency and wide-ratio operation. Gear ratios include 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. This range supports acceleration from low speeds while maintaining lower engine rpm during highway travel.
Primary drive ratio is configured at 34/46 through a chain-driven arrangement. Final drive ratio uses a belt-driven 30/68 configuration. Belt final drive systems reduce routine maintenance requirements compared with exposed chain systems and support smooth power delivery.
The clutch system uses a mechanically actuated 10-plate wet clutch with Assist and Slip functionality. The Assist function reduces clutch lever effort during operation, while the Slip function manages rear-wheel behavior during aggressive downshifts and rapid deceleration.
Chassis Construction and Suspension Calibration
The frame uses a mild-steel tubular structure with a two-piece stamped and welded backbone. Additional structural components include cast and forged junctions, twin down-tubes, and a bolt-on rear frame with forged fender supports. The frame assembly uses MIG welding throughout the construction process.
The swingarm uses mild-steel construction with a two-piece drawn and welded section and forged junctions. This configuration supports rigidity and load distribution during touring operation.
Front suspension consists of 47 mm inverted 1x1 front forks with adjustable preload, compression damping, and rebound damping. Inverted fork construction increases front-end rigidity and supports steering precision during braking and cornering. Riders can modify suspension response based on riding conditions, cargo load, or passenger weight through external adjustments.
Rear suspension uses an emulsion shock system with adjustable preload, compression damping, and rebound damping. Rear suspension travel measures 3 inches, while front suspension travel measures 4.6 inches. The suspension package supports touring comfort while maintaining chassis control during aggressive acceleration and directional changes.
Wheel Configuration and Tire Specifications
The 2026 Harley-Davidson® CVO™ Street Glide® ST uses black 7-spoke cast aluminum wheels. Front wheel diameter measures 19 inches with a width of 3.5 inches. Rear wheel diameter measures 18 inches with a width of 5 inches. Cast aluminum wheel construction reduces unsprung weight while maintaining structural strength for touring operation.
Front tire specification uses a Dunlop® Harley-Davidson® Series D408F tire sized at 130/60B19 M/C 61H. The Rear tire specification uses a Dunlop® Harley-Davidson® Series D407T tire sized at 180/55B18 M/C 80H. The tire combination supports highway stability, load-carrying capability, and cornering traction.
Lean angle capability is rated at 31 degrees on both left and right sides according to SAE J1168 testing methodology. This measurement reflects the motorcycle’s cornering clearance capability in conjunction with chassis geometry and suspension configuration.
Advanced Braking Components and Rider Assistance Technology
The braking system uses dual radial-mounted 4-piston fixed front calipers paired with dual floating wave-style front rotors. Front rotor diameter measures 12.6 inches with a thickness of 0.18 inches. Rear braking uses a single axial-mounted caliper with an 11.8-inch fixed rotor measuring 0.28 inches thick.
Anti-lock Braking System functionality is included as standard equipment. The motorcycle also includes Electronic Linked Braking, which distributes braking force between front and rear systems during operation. These systems support braking stability during emergency stops and changing traction conditions.
The rider safety package includes a Traction Control System, Drag-torque Slip Control System, Vehicle Hold Control, and Tire Pressure Monitoring System. Traction Control System manages rear-wheel slip during acceleration. Drag-torque Slip Control System assists with rear-wheel stability during rapid downshifts or deceleration. Vehicle Hold Control assists riders during hill starts by maintaining brake pressure temporarily after the rider releases the brake lever.
Cornering rider safety systems are also included. Cornering Enhanced Anti-lock Brake System, Cornering Enhanced Electronic Linked Braking, Cornering Enhanced Traction Control System, and Cornering Drag-Torque Slip Control System adjust system responses based on motorcycle lean angle. These systems are calibrated to maintain chassis stability during braking and throttle application while cornering.
Touring Dimensions and Operational Capacity
Fuel capacity measures 6 gallons with a reserve fuel injection warning-light capacity of 1 gallon. Oil capacity with filter measures 5 quarts. Transmission capacity measures 1 quart, and primary chain case capacity measures 1.1 quarts. Coolant capacity is listed at 0.82 quarts.
Weight as shipped is rated at 782 pounds. Running order weight measures 816 pounds. Gross Vehicle Weight Rating is listed at 1,360 pounds. Gross Axle Weight Rating measures 500 pounds for the front axle and 927 pounds for the rear axle.
Luggage capacity totals 2.42 cubic feet. The storage configuration supports touring applications requiring additional carrying capacity for riding gear, travel equipment, and personal cargo.
Estimated fuel economy is rated at 44 mpg using estimated city and highway testing methodology. The fuel range capability supports extended highway riding intervals between refueling stops.
Skyline™ OS and Integrated Rider Technology
The infotainment system of the 2026 Harley-Davidson® CVO™ Street Glide® ST operates through Skyline™ OS displayed on a 12.3-inch full-color TFT screen. The display integrates digital gauges and vehicle information functions into a single interface. Available vehicle information includes air temperature, oil pressure, and EITMS monitoring functions.
Audio output is managed through two 6.5-inch fairing-mounted speakers rated at 125 watts per channel. AM and FM radio functionality are included as standard equipment. Media compatibility includes SD card, flash drive, and MP3 playback through USB connection support.
Hands-free mobile phone functionality operates through Bluetooth® integration. Bluetooth® support also extends to media playback devices and headset connectivity. Rider and passenger intercom capability is available with compatible Harley-Davidson® headsets.
The 2026 Harley-Davidson® CVO™ Street Glide® ST includes Apple CarPlay® compatibility through wired or wireless connection methods. Navigation functionality is integrated through an embedded GPS system with traffic and weather capability through Wi-Fi hotspot services where applicable. A USB-C accessory power port rated at 15 watts is located in the media storage compartment for device charging and connectivity.
Electrical Systems and LED Lighting Configuration
Electrical power is managed through a sealed, maintenance-free 12V battery rated at 28 amp-hours and 405 cold-cranking amps. Charging capability is provided through a three-phase, 58-amp system rated at 754 watts maximum output at 13 volts.
The starting system uses a 1.6 kW electric starter with solenoid shift starter motor engagement. Lighting components include LED headlamps, LED tail and stop lamps, LED front signal lamps, and LED rear turn signals. LED lighting systems reduce electrical load while providing consistent illumination output and extended service life compared with traditional halogen systems.
Visit Tampa Bay Harley-Davidson® for a Test Ride
Riders interested in evaluating the 2026 Harley-Davidson® CVO™ Street Glide® ST can schedule a test ride at Tampa Bay Harley-Davidson® near Brandon, FL. A test ride allows riders to assess the Milwaukee-Eight® 121 High Output engine, the 6-Speed Cruise Drive® transmission, and the adjustable suspension system under operating conditions. Riders can also examine the Skyline™ OS infotainment system, the TFT display interface, and the integrated rider safety technologies during the evaluation process. The motorcycle’s braking systems, cornering assistance features, and touring dimensions can be experienced directly during a guided ride. Scheduling a test ride also provides an opportunity to review seating position, control placement, storage capacity, and electronic integration features in person.
