The 2026 Harley-Davidson® Street Bob® combines a large-displacement Milwaukee-Eight® V-twin engine, Softail® chassis construction, modern electronic rider-assist systems, and compact cruiser dimensions into a stripped-down performance-focused motorcycle. The model uses the Milwaukee-Eight® 117 Classic engine paired with a 6-Speed Cruise Drive® transmission and belt final drive. Standard equipment includes Anti-lock Braking System, traction control, tire pressure monitoring, LED lighting, and cornering-enhanced rider safety systems. The motorcycle also incorporates a low seat height, cast aluminum wheels, and a telescopic front suspension system designed for stable road handling and responsive steering characteristics.
Milwaukee-Eight® 117 Classic Engine Configuration
The 2026 Harley-Davidson® Street Bob® uses the Milwaukee-Eight® 117 Classic 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. Compression ratio is rated at 10.3:1. The valve train uses pushrod-operated overhead valves with hydraulic self-adjusting lifters and four valves per cylinder.
The engine produces 120 ft-lb of torque at 2,500 rpm and 98 horsepower at 4,600 rpm. These output figures contribute to low-rpm acceleration and steady midrange power delivery. Electronic Sequential Port Fuel Injection manages fuel delivery through the ESPFI system. The fuel system is calibrated for premium fuel with a recommended minimum octane rating of 91.
The intake assembly uses a 9-inch round air cleaner with a center-bolt cover and washable fiberglass filter media. Exhaust gases move through a 2-into-1 exhaust system with a catalyst integrated into the header section. Lubrication is managed through a pressurized dry-sump system equipped with an oil cooler. This arrangement supports thermal management during extended operation and highway use.
Six-Speed Transmission and Drivetrain Layout
The 2026 Harley-Davidson® Street Bob® uses a 6-Speed Cruise Drive® transmission. The drivetrain combines a chain primary drive with a belt final drive system. The primary drive ratio is listed at 34/46, while the final drive ratio is 32/66. The clutch assembly uses a mechanical 10-plate wet clutch with assist and conventional operation.
Gear ratios are configured to balance acceleration and highway cruising capability. First gear carries an overall ratio of 9.311, followed by 6.454 in second gear and 4.793 in third gear. The fourth gear ratio is 3.882, the fifth gear ratio is 3.307, and the sixth gear ratio is 2.79. The taller sixth gear supports lower engine speed during highway operation, contributing to reduced vibration and improved fuel efficiency at sustained cruising speeds.
Softail® Chassis and Structural Engineering
The frame uses mild steel tubular construction with a rectangular-section backbone. Harley-Davidson® integrates stamped, cast, and forged junctions into the frame structure, with MIG welding throughout the assembly. Aluminum forged fender supports contribute to reduced weight while maintaining structural rigidity.
The swingarm also uses mild steel tubular sections combined with a stamped cross-member and forged axle junctions. The assembly includes a removable belt spacer and MIG-welded construction.
Front suspension consists of a dual-bending valve 49 mm telescopic fork with aluminum triple clamps and dual-rate springs. Fork gaiter covers are included as standard equipment. Rear suspension uses a hidden free-piston coil-over monoshock with 43 mm of stroke and cam-style preload adjustment.
Front suspension travel measures 5 inches, while rear suspension travel measures 3.4 inches. Suspension geometry is configured to maintain low cruiser proportions while supporting predictable steering response and road stability.
Steering Geometry and Overall Dimensions
The 2026 Harley-Davidson® Street Bob® measures 91.3 inches in overall length, 36.4 inches in width, and 45.7 inches in overall height. The wheelbase measures 64.2 inches. Steering geometry includes a 30-degree rake and 30-degree fork angle paired with 6.2 inches of trail.
Static ground clearance measures 4.9 inches. Laden seat height is listed at 25.8 inches, while unladen seat height measures 26.8 inches. These dimensions contribute to a low center of gravity and controlled low-speed maneuverability.
Weight as shipped is listed at 622 lb, while running-order weight measures 646 lb. Gross Vehicle Weight Rating is 1,160 lb. Front Gross Axle Weight Rating measures 450 lb, and rear Gross Axle Weight Rating measures 730 lb.
Fuel capacity is rated at 3.5 gallons with a 1-gallon reserve warning capacity through the fuel injection monitoring system. Oil capacity with filter is 5 qt. Transmission capacity is 1 qt, while primary chain case capacity measures 1.25 qt.
Wheel Construction and Tire Specifications
The 2026 Harley-Davidson® Street Bob® rides on Dunlop® Harley-Davidson® Series bias blackwall tires. Front tire specification is 100/90B19 57H mounted on a 19-inch wheel with a width of 2.5 inches. Rear tire specification is 150/80B16 77H mounted on a 16-inch wheel with a width of 3 inches.
Standard wheel construction uses black Annihilator cast aluminum wheels. Optional painted aluminum tubeless laced wheels are also listed for certain regions and configurations. The wheel and tire dimensions support cruiser-style handling characteristics while maintaining directional stability during highway operation.
Braking Hardware and Rider-Control Systems
Front braking components use a 4-piston fixed caliper combined with an 11.8-inch solid, uniform expansion rotor. Rear braking uses a 2-piston floating caliper paired with an 11.5-inch rotor. Front rotor thickness measures 0.2 inches, while rear rotor thickness measures 0.23 inches.
Anti-lock Braking System is included as standard equipment. The motorcycle also includes Traction Control System and Drag-torque Slip Control System functionality. Tire Pressure Monitoring System is integrated into the instrumentation package.
Cornering-enhanced rider-assist systems are also included. These systems consist of a Cornering Enhanced Anti-lock Braking System, a Cornering Enhanced Traction Control System, and a Cornering Drag-Torque Slip Control System. These features are calibrated to support vehicle stability during leaned riding conditions.
Electronic Linked Braking, Vehicle Hold Control, Wheel Lift Mitigation, and Enhanced Lift Mitigation are not listed as included systems for this model.
Electrical Components and Charging Capacity
Electrical power is supplied through a sealed maintenance-free AGM battery rated at 12V and 17.5Ah with 310 cold-cranking amps at 0°F. Charging is managed through a three-phase 48-amp charging system capable of producing 364 watts at 13 volts and 900 rpm. Maximum output is listed at 624 watts at 13 volts and 2,000 rpm.
Engine starting uses a 1.6 kW electric starter with solenoid-shift starter motor engagement. This configuration supports reliable starting performance under varying operating conditions.
Lighting systems use LED technology throughout the motorcycle. The headlamp assembly includes low beam, high beam, and signature position lighting. Rear lighting uses bullet-style LED stop, tail, and turn signal assemblies. Front turn signals also use LED bullet-style units.
Instrumentation and Rider Interface Technology
Instrumentation centers around a 4-inch analog speedometer combined with a digital information display. The display provides gear position, odometer, fuel level, ride modes, heated gear indication, traction control status, ABS indication, tire pressure monitoring information, cruise control status, clock, trip functions, fuel range estimation, and tachometer indication.
The motorcycle includes a USB C-Type power outlet with 5V output at 2.4 amps. GPS navigation, Bluetooth® connectivity, infotainment systems, intercom systems, radio functions, and integrated mobile phone systems are not included on this model. The simplified electronic layout maintains focus on core riding functions and essential vehicle data.
Fuel Economy and Operational Efficiency
Estimated fuel economy is rated at 47 mpg based on city and highway testing procedures. The combination of electronic fuel injection, six-speed transmission gearing, and belt final drive contributes to consistent operating efficiency during highway and urban riding conditions.
The dry-sump lubrication system and oil cooling arrangement support sustained operation under varying engine loads and temperatures. Combined with the Milwaukee-Eight® 117 Classic engine configuration, the system is designed to maintain stable operating performance across different riding environments.
Visit Harley-Davidson® of Panama City Beach near Lynn Haven, FL
Riders interested in evaluating the 2026 Harley-Davidson® Street Bob® can schedule a test ride at Harley-Davidson® of Panama City Beach near Lynn Haven, FL. A test ride provides the opportunity to examine the Milwaukee-Eight® 117 Classic engine output, six-speed transmission performance, suspension response, and rider-assist technologies under operating conditions. The motorcycle’s low seat height, compact chassis dimensions, and electronic safety systems can also be assessed directly during the ride. Our team can provide additional information regarding drivetrain operation, braking systems, instrumentation functions, and chassis specifications. Scheduling a ride allows riders to compare the 2026 Harley-Davidson® Street Bob® platform against other cruiser configurations using direct operational feedback.
