Positioned in Harley-Davidson's sport motorcycle lineup, the 2023 Harley-Davidson Nightster features a 975.1 cc (59.5 cu in) air-cooled v2, four-stroke configuration. In factory specification, peak output is rated at 90 HP (65.7 kW) at 7,500 rpm while maximum torque reaches 94.9 Nm (70 lb-ft) at 5,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and belt final drive. With a specific output of 92.3 HP per liter and a 2,500 rpm working window between peak torque (5,000 rpm) and peak power (7,500 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the Nightster measures 218.2 kg (481 lbs) wet (curb), translating to a power-to-weight ratio of 0.41 HP/kg (2.42 kg per horsepower). Rider ergonomics and chassis geometry center around a 688 mm (27.1 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,557 mm (61.3 in) wheelbase engineered for planted straight-line stability. The 11.73-liter (3.1 US gal) fuel tank paired with a rated consumption of 4.49 L/100 km provides an estimated theoretical range of roughly 261 km (162 miles) between fill-ups.
Within MotoLibrary's Harley-Davidson archive, this model family spans 4 indexed model years from 2023 to 2026, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
92.3 HP/L
Power-to-Weight
0.41 HP/kg (2.42 kg/HP)
Power Band Window
5,000–7,500 rpm
Theoretical Range
~261 km (162 mi)
Engine
Displacement975.1 ccm (59.50 cubic inches)
Engine TypeV2, four-stroke
Engine DetailsRevolution Max 975 engine
Power90.0 HP (65.7 kW)) @ 7500 RPM
Torque94.9 Nm (9.7 kgf-m or 70.0 ft.lbs) @ 5000 RPM
Compression12.0:1
Bore x Stroke97.0 x 66.0 mm (3.8 x 2.6 inches)
Fuel SystemInjection. Electronic Sequential Port Fuel Injection (ESPFI)
CoolingAir
Transmission
Gearbox6-speed
Final DriveBelt (final drive)
ClutchMulti-plate with diaphragm spring in oil bath
Performance
Fuel Consumption4.49 litres/100 km (22.3 km/l or 52.39 mpg)
Greenhouse Gases104.2 CO2 g/km. (CO2 - Carbon dioxide emission)
Rear SuspensionRear suspension is dual outboard, direct-acting (no linkage) emulsion technology shock absorbers with coil springs and a threaded collar for pre-load adjustment.
Wheelbase1557 mm (61.3 inches)
Ground Clearance114 mm (4.5 inches)
Wheels & Brakes
Front Tyre100/90-19
Rear Tyre150/80-B16
Front BrakesSingle disc. ABS. Axially mounted, 4-piston caliper
Rear BrakesExpanding brake (drum brake). ABS. Floating, single piston caliper
WheelsAluminum cast, satin black wheels. Dunlop Harley-Davidson Series Bias Blackwall tires.
Dimensions & Weight
Dry Weight209.6 kg (462.0 pounds)
Weight incl.218.2 kg (481.0 pounds)
Power/Weight0.4295 HP/kg
Seat Height688 mm (27.1 inches) If adjustable, lowest setting.
Overall Length2271 mm (89.4 inches)
Fuel Capacity11.73 litres (3.10 US gallons)
Oil Capacity4.50 litres (4.76 US quarts)
Other
StarterElectric
Color OptionsVivid Black, Redline Red
Instruments4 inch colour TFT display with speedometer, gear, odometer, fuel level, clock, trip, ambient temp, low temp alert, side stand down alert, TIP over alert, cruise, range and tachometer indication BT capable - phone pairing to access phone calls, music, navigation
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
