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2021 Kawasaki Ninja H2 SX SE Plus Sports Motorcycle Review Specs

The new 2021 Kawasaki Ninja H2 SX SE Plus Sports Motorcycle takes luxury and performance to incredible heights. The balanced supercharged engine was designed for comfortable long-distance riding, exciting speeds, and excellent fuel efficiency in typical road riding scenarios. Enjoy your thrilling journey with premium features that distinguish the supercharged motorcycle as a symbol of sports performance, luxury and mood. Boost the power of your trip.

2021 Kawasaki Ninja H2 SX SE Plus Sports Motorcycle

The 2021 Kawasaki Ninja H2 SX SE Plus Sports Motorcycle is the most advanced Ninja H2, featuring Kawasaki Electronic Control Suspension (KECS), integrated riding modes, and smartphone connectivity. It will impress those who value advanced devices and a passion for supercharged acceleration.

2021 Kawasaki Ninja H2 SX SE Plus Sports Motorcycle – Features and Specs

Balanced Supercharged Engine

While the basic design is based on the Ninja H2 motorbike’s supercharged engine, the 2021 Kawasaki Ninja H2 SX SE Plus Sports Motorcycle is a type of engine that has undergone numerous modifications to achieve the desired power and fuel efficiency balance for the motorcycle. The balanced supercharged engine delivers astonishing speeds as well as exceptional fuel efficiency.

Supercharged Intake

The centrifugal-type supercharger invented and manufactured by Kawasaki has great pumping capacity. The crankshaft drives a planetary gear, which rotates a 69 mm impeller uniquely crafted using Kawasaki gas turbines and aerospace expertise. Because the supercharger is so efficient, the compressed intake air is heated a bit, so no intercooler is needed.

To help generate more power, the Ram Air Intake Duct sends new air to the supercharger as much as possible in a straight line.

Between the supercharger and the new throttle bodies, an aluminum intake chamber aids in dissipating heat and keeps the intake air cool. When the throttle stops, the ECU-controlled blow-off valve limits the pressure increase in the intake chamber, preventing the impeller from overheating and excessive vibration.

The airflow requirements of the new balanced supercharged engine are met from the frontal area of the left air intake. The intake duct directs the fresh air to the supercharger as much as possible, which increases the efficiency of the supercharger.


Using race technology developed for the Ninja ZX-10R, a two-stage machining mechanism for the cylinder head creates the neck of the intake ports. The area around the valve seats is bored twice: once with the same line as the throat and then again for the valve seats. As a result, intake airflow is smoother, which reduces intake loss and improves efficiency.

The cam profiles are designed to meet the airflow requirements of a typical road ride, resulting in lower to mid-range performance and fuel savings. To improve low-to-mid-range efficiency and fuel efficiency, the intake and exhaust ports are combined with airflow.

For precise cylinder dimensions, a mock cylinder head is used during the honing process that can be used to lessen the mechanical damage to the piston rings and to raise the engine response. A high compression ratio improves thermal efficiency and significantly increases fuel economy.

Because efficient combustion produces less heat, the pistons can be cooled by a solo oil jet, allowing the oil pump to rotate slowly to reduce friction loss. It also improves engine oil efficiency, which leads to weight loss.

Kawasaki DFI (KP) with Electronic Throttle Valves (ETV)(KP)

The ECU uses 40 mm of electronic throttle valves to achieve the fuel volume and air delivered to the engine. The best fuel injection and throttle valve position produce smooth, natural engine response and optimal engine output. The system improves S-KTRC input and adjusts Kawasaki launch control and an all-new Kawasaki engine brake control features (SE model only).

ETV allows the installation of a cruise control system, which lets the rider to maintain the selected speed by pressing a button for extra touring comfort.

Kawasaki Quick Shifter (KQS)

Rapid shifter with no contactless potentiometer for quick upshift and smooth acceleration. KQS automatically regulates engine speed when slowing down when the throttle is off, and engine speed does not come close to the red line, allowing it to go down without using the clutch lever.

2021 Kawasaki Ninja H2 SX SE Plus Sports Motorcycle

Assist & Slipper Clutch

The clutch is pressed together during acceleration (Assist function) using the rotating forces of the clutch hub and pressure plate, allowing the use of low and light clutch springs for a light feeling on the lever. The sleeper feature allows some clutches to slip in high backtrack conditions, such as when the gear is set too low when shifting down, helping the engine to lock up, stall, and prevent rear-wheel hop. When the clutch is disconnected, the Joder Spring component helps to avoid the Joder.

Kawasaki Next Level Electronics

Because of the programming that gives the ECU a precise, real-time picture of what the chassis is doing with negligible software, Kawasaki’s state-of-the-art electronics have always performed well on track. The Ninja H2 SX SE + motorcycle’s electronic management technology has evolved from setting-type and reaction-type systems to feedback-type systems to the next level, thanks to the modern iteration of Bosch IMU and Kawasaki’s unique dynamic modeling software.

Inertial Measurement Unit (IMU) (KP)

IMU calculates inertia in five axes: longitude, transition, vertical speed, roll rate, and pitch rate. ECU calculates the Yao rate with Kawasaki’s unique software so that the six-axis chassis can provide lean angle and acceleration/delirium force for more accurate electronic riding auxiliary control. IMU enables KTRC to add additional feedback to help speed up the turn on the race track.


To make the swing arm growing plate part of the frame, it is fastened to the rear of the engine. It helps to retain the frame light by eliminating the frame cross members and allowing the high-output engine chain tension to be effectively transferred to the rigid engine block. The center stand allows for more direct parking and simplifies maintenance.

Aggressive Styling

The Kawasaki Rivermark mark is prominently displayed on the front cowl, similar to the Ninja H2TM. Full firing protects the rider while not too large to drag on the motorway speed. Large firing ducts allow the supercharged engine to be viewed while removing heat from the engine compartment.

2021 Kawasaki Ninja H2 SX SE Plus Sports Motorcycle

Even when the Ninja H2TM SX SE + is stationary, the oblique “high-voltage lines” on the front that are traced by the side cowls, feathers, tail cowl, and muffler provide the impression of speed. All lights are LEDs, from recessed headlamps to slim taillights, which display a dual “H” during startup. There are three fixed directional LED cornering lights on either side of the firing.

2021 Kawasaki Ninja H2 SX SE Plus Sports Motorcycle – Price

The new 2021 Kawasaki Ninja H2 SX SE Plus Sports Motorcycle is available for $25,500 only.

2021 Kawasaki Ninja H2 SX SE Plus Sports Motorcycle – Technical Specifications


Type 4-Stroke, 4-Cylinder, DOHC, Liquid-Cooled, 4 Valve Cylinder Head, Supercharged
Displacement 998 cc
Bore & Stroke 76mm x 55mm
Maximum Torque 101 lb.-ft at 9,500 rpm
Compression Ratio 11.2:1
Fuel System DFI including 40mm Throttle Bodies (4) and Dual Injectors
Ignition TCBI with Digital Advance
Transmission 6-Speed, Dog-Ring
Final Drive Sealed Chain


Rake/Trail 24.7° / 4.1 in.
Front Wheel Travel 4.7 in.
Rear Wheel Travel 5.5 in.
Front Tire Size 120/70-17
Rear Tire Size 190/55-17
Wheelbase 58.3 in.
Fuel Tank Capacity 5.0 gal.
Seat Height 32.9 in.
Curb Weight 577.7 lb.

2021 Kawasaki Ninja H2 SX SE Plus Sports Motorcycle

Suspension and Brakes

Front Suspension KECS-controlled 43 mm Inverted Fork including Adjustable Compression and Rebound Damping, all-new Spring Preload Adjustability, and Top-Out Springs
Rear Suspension New Uni-Trak, KECS-controlled Gas-Charged Shock featuring Adjustable Compression and Rebound Damping, Remote Hand-Turn Preload Adjustability, and Top-Out Spring
Front Brake Type Dual Semi-Floating 320 mm of Discs with Radial-Mount, Opposed 4-Piston Calipers
Rear Brake Type 250mm Disc with Opposed 2 Piston Caliper


Warranty 12 months
Kawasaki Protection Plus™ 12, 24, 36, or 48 months

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