The 2025 Harley-Davidson® Low Rider® ST is engineered as a performance-oriented sport-touring motorcycle that blends heritage-inspired styling with modern mechanical and electronic systems. This model is defined by its Milwaukee-Eight® 117 High Output V-twin engine, frame-mounted aerodynamic fairing, performance suspension geometry, and an extensive suite of integrated rider safety technologies. Every component is designed with a clear technical purpose, supporting stability at speed, controlled power delivery, and long-distance riding efficiency. The 2025 Harley-Davidson® Low Rider® ST occupies a distinct position within the Harley-Davidson® lineup by focusing on sustained performance, handling precision, and functional touring capability rather than decorative elements.
The motorcycle’s design philosophy reflects an emphasis on mechanical efficiency and rider interface clarity. From intake and exhaust airflow optimization to electronic ride mode integration, the 2025 Harley-Davidson® Low Rider® ST is configured to deliver consistent performance across varied riding conditions while maintaining predictable handling characteristics.
Milwaukee-Eight® 117 High Output Engine Configuration
The 2025 Harley-Davidson® Low Rider® ST is powered by the Milwaukee-Eight® 117 High Output V-twin engine. This air- and oil-cooled power plant is tuned to deliver increased mid-range and upper-range output compared to standard Milwaukee-Eight® configurations. The engine produces 114 horsepower and 128 foot-pounds of torque, providing strong acceleration and sustained power delivery across the rev range.
The High Output tuning includes an increased redline of 5,900 rpm, up from 5,600 rpm in previous versions. This adjustment allows the engine to maintain power delivery deeper into the rev band, supporting extended acceleration during highway merging and overtaking. The combustion system, valve timing, and airflow management work together to ensure smooth torque delivery without abrupt power transitions.
Fuel efficiency is rated at 47 miles per gallon, reflecting a balance between output and consumption. This efficiency supports extended riding distances while maintaining performance consistency. The engine’s configuration prioritizes mechanical reliability and thermal management during prolonged operation.
Intake System and Exhaust Engineering
Airflow management on the 2025 Harley-Davidson® Low Rider® ST is handled through a forward-facing Heavy Breather intake system. This intake is designed to maximize airflow volume while maintaining intake tuning length that supports efficient cylinder filling. The result is improved combustion efficiency and sustained torque delivery under load.
Exhaust gases are routed through a redesigned two-into-one exhaust system. This configuration improves exhaust scavenging and contributes to consistent torque output throughout the rev range. The exhaust layout also supports improved ground clearance and a more centralized mass profile, which contributes to predictable handling during cornering.
The two-into-one design enables symmetrical saddlebag placement, improving storage balance and overall chassis stability during loaded touring use. The exhaust routing and heat management are integrated into the motorcycle’s overall structural layout to avoid interference with suspension travel or rider ergonomics.
Chassis Geometry and Suspension Architecture
The chassis of the 2025 Harley-Davidson® Low Rider® ST is configured to support performance-focused handling while maintaining touring stability. The rear suspension uses a tall monoshock that raises the rear ride height. This geometry increases lean angle capability and improves cornering clearance, allowing the motorcycle to maintain stability during aggressive riding inputs.
Front suspension duties are handled by a 43-millimeter inverted fork. This fork design increases rigidity and reduces flex under braking and cornering loads. The suspension tuning balances compliance with feedback, ensuring that road surface information is transmitted clearly to the rider without compromising comfort during extended rides.
The laden seat height measures 27 inches, supporting a lower center of gravity while maintaining sufficient suspension travel. This configuration enhances low-speed control and contributes to consistent handling characteristics across a wide range of speeds.
Frame-Mounted Fairing and Aerodynamic Development
A defining technical feature of the 2025 Harley-Davidson® Low Rider® ST is its lightweight frame-mounted fairing. Inspired by classic FXRT designs, this fairing is engineered using computational fluid dynamics to improve aerodynamic efficiency. By mounting the fairing directly to the frame rather than the front fork, steering input remains unaffected by wind load at higher speeds.
The fairing reduces wind pressure on the rider’s upper body, contributing to reduced fatigue during highway travel. Airflow is managed to minimize turbulence while preserving cooling airflow to the engine. The fairing’s shape and mounting position support high-speed stability and predictable steering response.
The integration of the fairing into the overall chassis design reflects a functional approach rather than a decorative one. Every surface serves a defined aerodynamic or structural role.
Lighting Systems and Visibility Enhancements
The 2025 Harley-Davidson® Low Rider® ST uses a full LED lighting system to support improved visibility and signaling. A 146mm LED headlamp provides consistent forward illumination with reduced power draw compared to traditional lighting systems. The redesigned LED taillight improves rear visibility, and LED turn signals deliver clear signaling in varying light conditions.
LED technology offers longer service life and stable performance across temperature ranges. The lighting system is integrated into the motorcycle’s electrical architecture to ensure consistent operation alongside onboard electronics and safety systems.
Seat Design and Rider Interface
The solo seat on the 2025 Harley-Davidson® Low Rider® ST is designed to provide secure rider positioning during acceleration and cornering. Its profile supports the rider’s lower body while allowing freedom of movement for weight transfer during dynamic riding. The seat’s structure contributes to overall control rather than prioritizing plushness or aesthetic detail.
Hand controls have been redesigned to improve accessibility and ergonomic efficiency. Ride mode selection is integrated into the control layout, and the brake lever offers adjustability to accommodate different hand sizes. Switch placement supports intuitive operation without requiring the rider to shift hand position during use.
Instrumentation and Electronic Integration
Instrumentation on the 2025 Harley-Davidson® Low Rider® ST centers on a four-inch display combining an analog speedometer with a multifunction digital screen. The digital display presents essential operating data, including gear position, tire pressure status, and system notifications. The interface is designed for clarity and minimal distraction.
Three selectable ride modes allow adjustment of throttle response and electronic intervention levels. These modes are intended to adapt the motorcycle’s behavior to varying riding conditions and rider preferences. Mode selection is integrated into the hand controls and displayed clearly on the instrument panel.
A USB-C charging port is included to support electronic devices during extended rides. The charging system is integrated into the motorcycle’s electrical network to provide consistent power output without compromising system stability.
Rider Safety Enhancements and Electronic Control Systems
The 2025 Harley-Davidson® Low Rider® ST includes the Harley-Davidson® comprehensive Rider Safety Enhancements package. These systems are designed to assist with traction management, braking control, and deceleration stability during challenging riding conditions.
The Anti-lock Braking System is calibrated to prevent wheel lock during hard braking in straight-line situations. Traction Control System functionality limits rear wheel spin during acceleration. The Drag-Torque Slip Control System reduces rear wheel slip during abrupt downshifts or sudden throttle reduction.
Cornering-enhanced systems expand these functions by accounting for lean angle. The Cornering Enhanced Anti-lock Braking System adjusts brake pressure during cornering to maintain traction. Cornering Enhanced Traction Control System manages rear wheel spin during leaned acceleration. Cornering Drag-Torque Slip Control System helps stabilize the rear wheel during deceleration while leaned.
The Tire Pressure Monitoring System continuously tracks tire inflation and alerts the rider through the display when pressure deviates from optimal levels. Proper tire pressure contributes directly to handling consistency, braking performance, and tire longevity.
Storage Integration and Touring Function
The 2025 Harley-Davidson® Low Rider® ST includes lockable saddlebags with a total capacity of 2 cubic feet. These saddlebags are designed to integrate seamlessly with the motorcycle’s bodywork and exhaust layout. Their placement supports balanced weight distribution and minimizes aerodynamic disruption.
The storage system is engineered for functional use rather than visual emphasis. Saddlebag mounting does not interfere with suspension travel or exhaust routing, preserving the motorcycle’s handling characteristics when loaded.
Brake Components and Tire Specification
Braking performance is supported by dual front disc brakes. This configuration provides consistent stopping power and supports the operation of the ABS and cornering-enhanced braking systems. Brake modulation remains predictable under varying load and traction conditions.
The motorcycle is equipped with Michelin® Scorcher® 31 tires. These tires are selected to complement the handling geometry and power output of the 2025 Harley-Davidson® Low Rider® ST. Tire compound and profile support both straight-line stability and cornering grip.
Visit Pig Trail Harley-Davidson® for a Test Ride
Riders interested in examining the technical capabilities of the 2025 Harley-Davidson® Low Rider® ST can evaluate its performance through a scheduled test ride at Pig Trail Harley-Davidson® near Bentonville, AR. Experiencing the Milwaukee-Eight® 117 High Output engine, frame-mounted fairing stability, and advanced Rider Safety Enhancements in operation provides valuable insight into how the systems function together. A test ride allows direct assessment of throttle response, braking behavior, suspension compliance, and electronic integration. The motorcycle’s balance between performance output and touring functionality becomes apparent during on-road operation. Scheduling a ride offers an opportunity to evaluate the 2025 Harley-Davidson® Low Rider® ST based on measurable performance characteristics rather than specifications alone.
