The 2026 Harley-Davidson® Low Rider® ST is a performance-focused motorcycle that combines a high-output V-twin engine, a purpose-built chassis, integrated utility, and a comprehensive suite of rider-assistance technologies. Built around the Milwaukee-Eight® 117 High Output engine, the model incorporates a carefully engineered drivetrain, suspension system, braking package, and electronic features designed to support both everyday riding and longer-distance travel. The 2026 Harley-Davidson® Low Rider® ST also integrates modern rider information systems, LED lighting, advanced safety technologies, and practical luggage capacity.
Engine and Powertrain
The 2026 Harley-Davidson® Low Rider® ST is powered by the Milwaukee-Eight® 117 High Output engine with a displacement of 117 cubic inches, or 1,923 cc. This engine uses a pushrod-operated valvetrain with overhead valves, hydraulic self-adjusting lifters, and four valves per cylinder. The design combines a bore of 4.075 inches with a stroke of 4.5 inches, creating the displacement and operating characteristics that define the model. A compression ratio of 10.3:1 supports the engine's performance output while maintaining compatibility with the specified fuel system configuration.
Intake, Fuel Delivery, and Exhaust System
Fuel delivery is managed through Electronic Sequential Port Fuel Injection (ESPFI), providing controlled fuel distribution throughout the operating range. The engine uses a Heavy Breather intake equipped with synthetic media and a washable exposed filter element. This intake configuration contributes to the engine's airflow management while allowing for routine maintenance of the filter element. Exhaust gases exit through a 2-into-1 exhaust system featuring a catalyst located in the header assembly. The combination of the intake, fuel injection, and exhaust systems creates an integrated approach to engine operation and efficiency.
Lubrication and Operating Capacity
The lubrication system utilizes a pressurized dry-sump design equipped with an oil cooler. This arrangement separates oil storage from the crankcase and supports consistent lubrication throughout various operating conditions. Oil capacity with the filter is rated at 5 quarts, or 4.7 liters. The motorcycle does not use a liquid-cooling system, and coolant capacity is therefore listed as not applicable.
Performance Characteristics
The performance specifications of the 2026 Harley-Davidson® Low Rider® ST highlight the capabilities of its Milwaukee-Eight® 117 High Output engine. Using the J1349 testing method, the engine produces 128 ft-lb of torque at 4,000 rpm. Peak output is rated at 114 horsepower, or 85 kW, at 5,000 rpm. These figures provide measurable performance data and illustrate the relationship between engine speed, torque production, and horsepower output.
Fuel Capacity and Fuel Economy
The motorcycle carries 5 gallons, or 18.9 liters, of fuel. A fuel injection warning light is associated with a reserve fuel capacity of 1 gallon, or 3.8 liters. Fuel economy is estimated at 47 mpg, equivalent to 5 l/100 km, using the listed city and highway testing methodology. The combination of fuel capacity and estimated fuel economy contributes to the motorcycle's overall operating range.
Lean Angle Specifications
Lean angle measurements are listed using the J1168 testing method. The 2026 Harley-Davidson® Low Rider® ST achieves a right-side lean angle of 31.3 degrees and a left-side lean angle of 31.3 degrees. Matching lean angle figures on both sides provides consistency in the published handling specifications. These measurements represent an important aspect of the motorcycle's chassis and cornering capabilities.
Drivetrain and Transmission
Power from the Milwaukee-Eight® 117 High Output engine is transferred through a chain primary drive with a 34/46 ratio. Final drive duties are handled by a belt system using a 32/66 ratio. This drivetrain configuration forms the connection between engine output and rear-wheel power delivery. Each component serves a specific role in transmitting power through the motorcycle.
Six-Speed Cruise Drive® Transmission
The 2026 Harley-Davidson® Low Rider® ST uses a 6-Speed Cruise Drive® transmission. Clutch operation is managed through a mechanical 10-plate wet clutch featuring assist and conventional functionality. Overall gear ratios are listed at 9.311 in first gear, 6.454 in second gear, 4.793 in third gear, 3.882 in fourth gear, 3.307 in fifth gear, and 2.79 in sixth gear. This progression provides a clearly defined reduction pattern across all six gears. The transmission and clutch components work together to manage power delivery throughout the operating range.
Chassis and Structural Design
The chassis of the 2026 Harley-Davidson® Low Rider® ST utilizes a mild-steel tubular frame with a rectangular-section backbone. Construction incorporates stamped, cast, and forged junctions connected through MIG welding techniques. Aluminum forged fender supports are integrated into the overall frame structure. The combination of materials and manufacturing methods creates a rigid platform for the motorcycle's suspension and drivetrain components. The frame architecture also serves as the foundation for the model's geometry and handling characteristics.
Swingarm Construction
The swingarm uses mild-steel tubular sections combined with a stamped cross-member and forged axle junctions. Like the frame, the swingarm is assembled using MIG welding techniques. A removable belt spacer is incorporated into the design. These construction details reflect the motorcycle's structural approach and support the operation of the rear suspension and final drive components. The swingarm functions as an integral part of the overall chassis system.
Dimensions and Geometry
The 2026 Harley-Davidson® Low Rider® ST measures 92.9 inches in overall length, 35 inches in overall width, and 50.8 inches in overall height. The wheelbase is specified at 63.6 inches. Steering geometry includes a rake angle of 28 degrees, a fork angle of 28 degrees, and a trail measurement of 5.7 inches. Static ground clearance is also rated at 5.7 inches. These dimensions and geometry specifications influence rider positioning, chassis behavior, and overall vehicle packaging.
Suspension, Wheels, and Tires
The suspension system combines modern front-end architecture with a rear monoshock configuration. At the front, the motorcycle uses a 43 mm inverted single-cartridge fork equipped with aluminum triple clamps and a single-rate spring. This setup delivers 5 inches of front suspension travel. At the rear, a hidden free-piston coil-over monoshock provides 4.4 inches of travel and incorporates hydraulic preload adjustment. Together, the front and rear suspension systems form the foundation of the motorcycle's ride and handling characteristics.
Wheel Construction
The 2026 Harley-Davidson® Low Rider® ST is equipped with Radiate Cast Aluminum wheels. Standard wheel specifications include a 19-inch front wheel measuring 2.5 inches wide and a 16-inch rear wheel measuring 5 inches wide. The listed wheel finish is chrome, while a black Radiate Cast Aluminum wheel configuration is also identified. Wheel dimensions are matched to the motorcycle's tire specifications and chassis geometry.
Tire Specifications
Front and rear tire duties are handled by Michelin® Scorcher 31 tires. The front tire specification is 110/90B19,62H,BW, while the rear tire specification is 180/70B16,77H,BW. Tire sizing corresponds directly with the wheel dimensions and chassis configuration. These specifications establish the motorcycle's contact patch dimensions and support its published handling characteristics.
Braking Systems and Rider Safety Technology
The braking package on the 2026 Harley-Davidson® Low Rider® ST combines multi-piston calipers, floating rotors, and electronic safety systems. The front brake assembly uses dual brakes with fixed four-piston calipers. The rear brake uses a floating two-piston caliper. Front and rear braking components work together to provide the motorcycle's stopping capability. Standard Anti-lock Braking System functionality is integrated into the overall braking package.
Brake Hardware
Front brake rotors measure 11.8 inches in diameter and 0.2 inches in thickness. Rear brake rotor dimensions are listed at 11.5 inches in diameter and 0.23 inches in thickness. The motorcycle uses black Split 7-spoke floating rotors at both ends. Dual front brakes provide increased braking surface area and complement the four-piston front calipers. The rear braking assembly completes the motorcycle's braking system specification.
Rider Safety Enhancements
The 2026 Harley-Davidson® Low Rider® ST includes Anti-lock Braking System technology, Traction Control System functionality, Drag-torque Slip Control System capability, and a Tire Pressure Monitoring System. In addition, the motorcycle incorporates Cornering Enhanced Anti-lock Brake System, Cornering Enhanced Traction Control System, and Cornering Drag-Torque Slip Control System technologies. These systems provide electronic assistance for braking, traction management, tire pressure monitoring, and engine braking control. Vehicle Hold Control, Electronic Linked Braking, Wheel Lift Mitigation, Enhanced Lift Mitigation, and Cornering Enhanced Electronic Linked Braking are listed as not applicable. The included systems represent the motorcycle's primary rider safety technologies.
Electrical Equipment and Rider Information Systems
The motorcycle uses a sealed, maintenance-free absorbed glass mat battery rated at 12 volts, 17.5 Ah, and 310 CCA at 0°F. Electrical charging is provided by a three-phase 48-amp system. Output is listed at 364 watts at 13 volts and 900 rpm, with maximum output reaching 624 watts at 13 volts and 2,000 rpm. Starting duties are handled by a 1.6 kW electric starter system with solenoid-shift starter motor engagement. These components form the foundation of the motorcycle's electrical architecture.
LED Lighting System
Lighting equipment on the 2026 Harley-Davidson® Low Rider® ST utilizes LED technology throughout the primary lighting components. The headlamp incorporates LED low beam, high beam, and signature position lamp functions. Rear lighting includes an LED Buffett tail lamp. Front and rear turn signals use LED Bullet Turn Signals. This lighting configuration provides a consistent LED-based approach across the motorcycle's major lighting systems.
Instrumentation and Rider Information
A 4-inch analog speedometer serves as the centerpiece of the instrument package while incorporating extensive digital functionality. Displayed information includes gear position, odometer readings, fuel level, ride modes, heated gear status, traction control status, ABS status, tire pressure monitoring information, cruise control indication, clock functions, trip information, range calculations, and tachometer indication. The display consolidates a broad range of operational information within a compact instrument layout. This arrangement allows riders to access key vehicle information through a centralized gauge system.
Utility and Functional Features
The 2026 Harley-Davidson® Low Rider® ST incorporates several practical features that support daily use and longer-distance riding. Luggage capacity is rated at 2 cubic feet, providing dedicated storage volume within the motorcycle's overall design. The model also includes a USB-C Type power outlet with a 5V output at 2.4 amps.
Rider Accommodations and Operating Specifications
The motorcycle features a laden seat height of 27 inches and an unladen seat height of 28.1 inches. Weight specifications include 686 pounds as shipped and 712 pounds in running order. Gross Vehicle Weight Rating is listed at 1,160 pounds, while Gross Axle Weight Ratings are specified at 450 pounds for the front and 730 pounds for the rear. These figures help define the motorcycle's operating parameters and carrying capabilities.
Schedule a Test Ride at Harley-Davidson® of Wesley Chapel
We invite you to experience the 2026 Harley-Davidson® Low Rider® ST firsthand at Harley-Davidson® of Wesley Chapel near Zephyrhills, FL. Our team can help you explore the Milwaukee-Eight® 117 High Output engine, six-speed transmission, rider safety technologies, suspension components, and integrated utility features in greater detail. A test ride provides an opportunity to evaluate the motorcycle's handling characteristics, braking systems, instrumentation, and comfort-related specifications. You can also experience the operation of the electronic rider-assistance systems and onboard technology features during a ride.
