At the heart of the 2023 Kawasaki Vulcan 900 Classic motorcycle, Kawasaki features a purpose-built liquid-cooled engine configuration. In factory specification, maximum torque reaches 78.9 Nm (58.2 lb-ft) at 3,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and belt final drive. Internal engine geometry specifies a bore and stroke of 88.0 x 74.2 mm (3.5 x 2.9 inches) with a 9.5:1 compression ratio.
Rider ergonomics and chassis geometry center around a 680 mm (26.8 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,646 mm (64.8 in) wheelbase engineered for planted straight-line stability. The 20-liter (5.3 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Kawasaki archive, this model family spans 2 indexed model years from 2019 to 2023, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
680 mm (26.8 in)
Engine
Torque78.9 Nm (8.0 kgf-m or 58.2 ft.lbs) @ 3500 RPM
Compression9.5:1
Bore x Stroke88.0 x 74.2 mm (3.5 x 2.9 inches)
Valves/Cylinder4
Fuel SystemInjection. DFI 34mm Throttle Bodies (2), with sub-throttle valves
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.
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.
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.
