2025 Kawasaki Vulcan S Key Specifications & Summary
The 2025 Kawasaki Vulcan S is a custom - cruiser motorcycle manufactured by Kawasaki, equipped with a 649.0 ccm (39.60 cubic inches) displacement unit (Twin, four-stroke) with liquid cooling. In factory trim, the engine delivers a rated power of 61.0 HP (44.5 kW)) @ 7500 RPM and peak torque of 62.8 Nm (6.4 kgf-m or 46.3 ft.lbs) @ 6600 RPM, paired with a 6-speed transmission and chain (final drive) final drive.
For rider ergonomics and real-world handling, key chassis measurements include a curb weight of 268.4 kg (591.7 pounds), seat height of 705 mm (27.8 inches) If adjustable, lowest setting., fuel capacity of 14.00 litres (3.70 US gallons). Review the complete factory specification tables below to evaluate engine internals, suspension travel, braking hardware, tyre sizes and ownership estimates, or compare the 2025 Kawasaki Vulcan S side by side against rival models in the Custom - Cruiser lineup.
Engine
Displacement649.0 ccm (39.60 cubic inches)
Engine TypeTwin, four-stroke
Power61.0 HP (44.5 kW)) @ 7500 RPM
Torque62.8 Nm (6.4 kgf-m or 46.3 ft.lbs) @ 6600 RPM
Compression10.8:1
Bore x Stroke83.0 x 60.0 mm (3.3 x 2.4 inches)
Valves/Cylinder4
Fuel SystemInjection. DFI with two 38mm throttle bodies, with sub-throttles
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionTCBI with electronic advance
LubricationForce lubrication, semi-dry sump
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchWet multi-disc
DrivelineSealed Chain
Performance
Fuel Consumption4.00 litres/100 km (25.0 km/l or 58.81 mpg)
Greenhouse Gases92.8 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame TypeHigh-tensile steel diamond
Rake31.0°
Trail119 mm (4.7 inches)
Front Suspension41mm telescopic fork
Front Travel130 mm (5.1 inches)
Rear SuspensionLay-down offset rear shock with linkage and adjustable preload
Rear Travel81 mm (3.2 inches)
Wheelbase1575 mm (62.0 inches)
Ground Clearance130 mm (5.1 inches)
Wheels & Brakes
Front Tyre120/70-18
Rear Tyre160/60-17
Front BrakesDouble disc. Twin-piston caliper, optional ABS
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.
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.
