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Kawasaki VN 650 Vulcan S

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Make Model

Kawasaki VN 650 Vulcan S / ABS

Year

2025

Engine

Four stroke, parallel twin cylinder. DOHC, 4 valves per cylinder.

Capacity

649 cc / 39.65 cu /in
Bore x Stroke 83 x 60 mm
Cooling System Liquid cooled
Compression Ratio 10.8:1
Lubrication Wet sump

Induction

Fuel system DFI® with two 38mm throttle bodies, with sub-throttles

Ignition 

TCBI with digital advance

Starting Electric

Max Power

61 hp / 44.5 kW) @ 7500 rpm

Max Torque

63 Nm / 46.3 lb-ft @ 6600 rpm

Clutch Wet, Multi Disc

Transmission 

6 Speed with positive neutral finder
Final Drive Sealed chain
Frame High-tensile steel diamond frame

Front Suspension

41 mm hydraulic telescopic fork
Front Wheel Travel 129 mm / 5.1 in

Rear Suspension

Lay-down offset rear shock with linkage and adjustable preload

Rear Wheel Travel 81.2 mm / 3.2 in

Front Brakes

Single 300mm disc 2 piston caliper

Rear Brakes

Single 250mm disc 1 piston caliper
ABS Standard

Front Tyre

120/70 -R18

Rear Tyre

160/60 R17
Rake 31°
Trail 119.4 mm / 4.7 in
Dimensions Length 2311 mm / 91.0 in.
Width 881.3 mm / 34.7 in.
Height 1099.8 mm / 43.3 in
Wheelbase 1574.8 mm  / 62 in.
Seat Height 706 mm / 27.8 in
Ground Clearance 129 mm / 5.1 in

Wet Weight (non-ABS)

223.0 kg  /  491.7 lbs
Wet Weight (ABS) 226.0 kg / 498.3 lbs

Fuel Capacity 

14 Litres / 3.7 US gal
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From a press release issued by Kawasaki and its website:

Unlike any other cruiser, the Vulcan® S is designed to transport riders into a sporty realm in edgy style. Blending an aggressive ride with vintage styling and a powerful 649cc engine, this bike kicks any experience into high gear. Whether you're commuting to work or enjoying a day trip, the Vulcan S adds confidence-inspiring performance to every ride.

The compact 649cc parallel-twin engine delivers smooth and responsive power. A light overall weight produces easy handling and exceptional performance for a confidence-inspiring experience.

Late-model sport bikes often use large-bore throttle bodies to generate high levels of power. However, with large diameter throttles, when a rider suddenly opens the throttle, the unrestricted torque response can be strong. Dual throttle valve technology was designed to tame engine response while contributing to performance.

On models with dual throttle valves, there are two throttle valves per cylinder: in addition to the main valves, which are physically linked to the throttle grip and controlled by the rider, a second set of valves, opened and closed by the ECU, precisely regulates intake airflow to ensure a natural, linear response. With the air passing through the throttle bodies becoming smoother, combustion efficiency is improved and power is increased.

Using high-precision electronic control for engine management, Kawasaki models can achieve a high level of fuel efficiency. However, fuel consumption is greatly affected by throttle use, gear selection, and other elements under the rider's control. The Economical Riding Indicator is a function that indicates when current riding conditions are consuming a low amount of fuel. The system continuously monitors fuel consumption, regardless of vehicle speed, engine speed, throttle position and other riding conditions. When fuel consumption is low for a given speed (i.e. fuel efficiency is high), an "ECO" mark appears on the instrument panel's LCD screen. By riding so that the "ECO" mark remains on, fuel consumption can be reduced.

While effective vehicle speed and engine speed may vary by model, paying attention to conditions that cause the "ECO" mark to appear can help riders improve their fuel efficiency – a handy way to increase cruising range. Further, keeping fuel consumption low also helps minimize negative impact on the environment.

Kawasaki ABS systems use front and rear wheel sensors to constantly monitor wheel speed. Should information from either of the sensors indicate that wheel lock has occurred, the ABS ECU directs the pump in the ABS unit to modulate brake fluid pressure (releasing and reapplying pressure so that traction can be regained) until normal operation resumes. ABS offers rider reassurance that contributes to greater riding enjoyment.

Proper fit is key for rider comfort and control. However, the ideal fit varies from rider to rider, depending on their physical dimensions and riding style.

ERGO-FIT® is an interface system designed to allow riders to find their ideal riding position. Various points of the vehicle chassis can be adjusted through a combination of interchangeable parts and parts with adjustable positions. This enables a wide range of riders to find a riding position that offers both comfort and control. Feeling at one with their machine, they will be able to experience how Kawasaki machines are fun and rewarding to ride.