Precision-Focused Overview of the 2026 Harley-Davidson® Low Rider® ST
The 2026 Harley-Davidson® Low Rider® ST is engineered as a performance-oriented cruiser with integrated touring capability. The motorcycle combines a large-displacement V-twin engine, a structurally rigid chassis, and a defined set of rider-assistance systems. It measures 92.9 inches in length, 35 inches in width, and 50.8 inches in height. The wheelbase extends to 63.6 inches, with a rake angle of 28 degrees and a trail measuring 5.7 inches. Laden seat height is 27 inches, while unladen seat height is 28.1 inches. Static ground clearance is rated at 5.7 inches. These measurements establish a low seating position, moderate steering geometry, and a stable platform intended for controlled handling across varying riding conditions.
High-Output Milwaukee-Eight® 117 Engine Specifications
The 2026 Harley-Davidson® Low Rider® ST uses the Milwaukee-Eight® 117 High Output engine with a displacement of 117 cubic inches or 1,923 cc. The engine features a bore of 4.075 inches and a stroke of 4.5 inches, paired with a compression ratio of 10.3:1. It uses pushrod-operated overhead valves with hydraulic self-adjusting lifters and four valves per cylinder. Fuel delivery is handled by Electronic Sequential Port Fuel Injection. Air intake is managed through a Heavy Breather system with a synthetic, washable exposed filter element.
The engine produces 128 foot-pounds of torque at 4,000 rpm and 114 horsepower at 5,000 rpm. This output configuration supports strong low- to mid-range performance characteristics with sustained power delivery at higher engine speeds. The lubrication system is pressurized and dry-sump based, with an integrated oil cooler to manage thermal conditions during extended operation. Exhaust routing uses a 2-into-1 configuration with a catalyst located in the header assembly.
Transmission and Drivetrain Configuration
The drivetrain is designed to support consistent power transfer and efficient gearing. The motorcycle uses a 6-Speed Cruise Drive® transmission. Primary drive is chain-driven with a 34/46 ratio, while the final drive is belt-driven with a 32/66 ratio. The clutch is a mechanical, 10-plate wet design with assist and conventional operation.
Gear ratios are spaced to provide controlled acceleration and manageable engine speeds at higher velocities. First gear is rated at 9.311, followed by 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 allows for responsive acceleration in lower gears and reduced engine load during highway operation. The belt-driven final system contributes to smoother operation and reduced maintenance requirements compared to chain-driven alternatives in similar applications.
Frame Structure and Chassis Construction
The chassis uses a mild steel tubular frame with a rectangular-section backbone. The structure incorporates stamped, cast, and forged junctions, all assembled using MIG welding. Aluminum forged fender supports are included to reduce localized weight while maintaining strength. The swingarm also uses a mild steel tubular design with stamped cross-members and forged axle junctions. It includes a removable belt spacer to facilitate drivetrain service.
This structural configuration is designed to balance rigidity and weight distribution. The geometry, including a 28-degree rake and consistent fork angle, supports stable directional control. The 63.6-inch wheelbase contributes to longitudinal stability, particularly during sustained speed and load transitions.
Suspension System and Ride Dynamics
The front suspension uses a 43 mm inverted fork with a single-cartridge design and aluminum triple clamps. It is configured with a single-rate spring to maintain a consistent response under varying loads. The rear suspension is a hidden coil-over monoshock with a free piston design. It provides 56 mm of stroke and includes hydraulic preload adjustment.
Front suspension travel is 5 inches, while rear travel is 4.4 inches. This configuration supports controlled movement across uneven surfaces and maintains consistent tire contact. Hydraulic preload adjustment allows riders to modify rear suspension characteristics to accommodate cargo or passenger weight without requiring complex mechanical adjustments.
Wheel Dimensions and Tire Specifications
The 2026 Harley-Davidson® Low Rider® ST is equipped with cast aluminum wheels. The front wheel measures 19 inches in diameter and 2.5 inches in width. The rear wheel measures 16 inches in diameter and 5 inches in width. Tires are Michelin® Scorcher 31 units on both ends. The front tire specification is 110/90B19 with a 62H rating, while the rear tire is 180/70B16 with a 77H rating.
This wheel and tire configuration supports directional stability and traction under acceleration. The larger front wheel aids in steering precision, while the wider rear tire provides increased contact area for torque transfer.
Braking System and Control Integration
The braking system consists of dual front disc brakes and a single rear disc. The front uses 11.8-inch floating rotors with 4-piston fixed calipers. The rear uses an 11.5-inch rotor with a 2-piston floating caliper. Both front and rear rotors use a split 7-spoke floating design.
Anti-Lock Braking System is standard. The motorcycle also includes a Traction Control System and Drag-torque Slip Control System. The Tire Pressure Monitoring System is integrated to provide continuous monitoring of tire inflation levels. Cornering-specific enhancements include Cornering Enhanced Anti-Lock Braking System, Cornering Enhanced Traction Control System, and Cornering Drag-Torque Slip Control System.
Electronic Linked Braking, Vehicle Hold Control, Wheel Lift Mitigation, and related enhancements are not included. The available systems are configured to improve braking consistency and traction management without introducing additional complexity.
Electrical System and Lighting Components
The electrical system uses a sealed, maintenance-free absorbed glass mat battery rated at 12 volts and 17.5 amp-hours, with 310 cold cranking amps at 0 degrees Fahrenheit. Charging is managed through a three-phase 48-amp system. It produces 364 watts at 13 volts at 900 rpm and reaches a maximum output of 624 watts at 2,000 rpm.
Starting is handled by a 1.6 kW electric starter with solenoid engagement. Lighting is fully LED. The headlamp includes a low beam, a high beam, and a signature position lamp. Tail and stop lighting use an LED assembly, and both front and rear turn signals are LED bullet-style units. LED lighting supports visibility and durability while reducing electrical load.
Instrumentation and Rider Interface
The instrument cluster uses a 4-inch analog speedometer paired with a digital display. The digital interface provides gear position, odometer, fuel level, ride modes, heated gear status, traction control status, ABS status, tire pressure monitoring, cruise control, clock, trip data, range estimation, and tachometer information.
The system is designed to present operational data without additional multimedia integration. A USB-C power outlet is included with an output of 5 volts at 2.4 amps, allowing device charging. No infotainment system, audio components, Bluetooth® connectivity, or navigation features are integrated into the motorcycle. This configuration maintains focus on essential ride information and system monitoring.
Fuel Capacity, Efficiency, and Operating Metrics
The fuel tank capacity is 5 gallons, with a reserve indicator activated at approximately 1 gallon remaining. Estimated fuel economy is rated at 47 miles per gallon. Oil capacity is 5 quarts with a filter installed. Transmission fluid capacity is 1 quart, and the primary chain case holds 1.25 quarts.
The motorcycle has a running weight of 712 pounds and a shipped weight of 686 pounds. Gross vehicle weight rating is 1,160 pounds. The front axle rating is 450 pounds, and the rear axle rating is 730 pounds. Luggage capacity is measured at 2 cubic feet, supporting extended riding applications with storage requirements.
Performance Geometry and Lean Capability
Lean angle is measured at 31.3 degrees on both left and right sides. This specification indicates the motorcycle’s ability to maintain traction and stability during cornering. Combined with the suspension and chassis geometry, the lean capability supports controlled turning performance without compromising ground clearance.
Schedule a Test Ride at Speedway Harley-Davidson®
We invite riders to examine the technical specifications of the 2026 Harley-Davidson® Low Rider® ST in detail and then assess its performance through direct operation. At Speedway Harley-Davidson® near Charlotte, NC, our team provides access to this model for in-person evaluation. A test ride allows riders to observe engine output, braking response, and traction control behavior under controlled conditions. It also provides an opportunity to review instrumentation, suspension response, and overall handling characteristics during actual operation. Schedule a test ride to evaluate how the 2026 Harley-Davidson® Low Rider® ST performs across acceleration, cornering, and braking scenarios using its full range of integrated systems.
