Introduction

The Ninja® 250R has always been a great place for beginning riders to get started, but modern sportbike technology means the littlest Ninja is a great choice for more experienced riders as well — especially ones experienced at getting the most for their motorcycle dollar. While its twin-cylinder engine might be small, light and compact, its 8-valve head packs maximum power into every rpm. The 250R screams Ninja performance, from its sleek full fairing and 17-inch wheels, to its UNI-TRAK® rear suspension and triple petal-disc brakes.
 
Details & Features

DOHC 249cc Parallel Twin-cylinder Engine
• Compact parallel-twin design offers good mass centralization for superior handling
• Tuned to deliver smooth, step-free power with an emphasis on low- and mid-range power for rider-friendly response
• Pistons feature reinforced heads and strengthening in the pin boss area for increased durability
• Thick piston (longitudinally) rings help prevent oil consumption
• Combustion chamber design optimized to maximize combustion efficiency and reduce emissions
• Ample high-rpm performance will please riders using the full range of the engine
Cylinder head
• Intake and exhaust ports contribute to good off-idle response and smooth power delivery
• Valve timing and lift designed for strong low- and mid-range torque
• Direct valve actuation helps ensure reliable high-rpm operability
• Thin heads and stems on valves for reduced reciprocating weight
Carburetor
• Fine-tuned twin Keihin CVK30 carburetors offer good power feel and low fuel consumption
Reduced mechanical noise
• Automatic adjusting cam chain tensioner eliminates mechanical noise caused by a loose cam chain and reduces power-robbing friction loss
• Eliminating mechanical noise allows the use of a freer flowing exhaust for a better performance
• Complex construction with reinforcing ribs helps eliminate airbox reverberation and reduces intake noise
• Air filter accessible from the side, for easy replacement
Exhaust system
• 2-into-1 system contributes to the Ninja 250R’s low- and mid-range torque and smooth, step-free power curve
• Slightly upswept silencer extensively tested to determine chamber size, connecting pipe length and diameter to achieve least noise and most power
• Meets strict emissions with dual catalyzers; one in the collector pipe and the other in the silencer
• Using two catalyzers minimizes the power loss
• Positioning the first catalyzer as close to the exhaust ports maximizes its efficiency as well
Liquid Cooling
• Latest generation Denso radiator offers superior cooling with minimal space and weight
• Ring-fan uses a quiet-running motor that also saves space
• Fins on the lower side of the crankcase further helps cool the engine
Six-speed Transmission / Clutch
• Involute splines reduce friction and backlash between gears and shafts for easier gear meshing and smooth shifting under power
• Spring-type clutch damper reduces jerkiness at very low speeds and minimizes shocks when rolling on and off the throttle for a smoother clutch feel
• Paper-base friction plates help increase clutch durability
Chassis
• Sturdy and durable diamond-style frame of thick-walled steel tubing offers confidence-inspiring stability at both high and low speeds
• Beefy swingarm bracket contributes to the frame’s rigidity and helps achieve an ideal chassis stiffness balance
• Square-tube swingarm with a 60 x 30mm cross-section further adds to rigidity
Suspension
• 37mm telescopic front fork with firm settings contribute to the Ninja 250R’s smooth, stable handling and enhanced ride control
• UNI-TRAK® rear suspension complements the rigid frame and provides great road holding ability
• Rear shock features 5-way adjustable preload, enabling ride height to be maintained whether riding solo or with a passenger
Wheels
• Features 17” wheels like its larger supersport brothers
• Low-profile sportbike tires on wide rims contribute to its easy, neutral handling at low speeds
Brakes
• Large-diameter, 290mm front petal disc and a balanced action two-piston caliper offer excellent braking performance and a natural, direct feeling at the lever
• Two-piston caliper grips the rear 220mm petal disc
Ergonomics
• Natural riding position with slightly forward-slanting seat and wide, raised handlebars
Bodywork
• Styling, fit and finish of striking full-fairing bodywork match its Ninja supersport siblings
• Aggressive dual-lamp headlight design, slim tail cowl and separate seats further enhance the supersport look
• Front cowling and windscreen offer the rider a substantial amount of wind protection
• Two helmet holders conveniently located under the rear seat
• Under-seat storage can hold a U-lock or similar device
• Two hooks under the tail and the rear passenger pegs provide anchor points for securing items to the rear of the bike
Instrumentation
• Instrument panel features an easy-to-read, large-face analog speedometer along with an analog tachometer, odometer, trip meter, fuel gauge and warning lights
 

Specifications

Engine Four-stroke, liquid-cooled, DOHC, parallel twin
Displacement 249 cc
Bore x Stroke 62.0 x 41.2mm
Compression Ratio 11.6:1
Carburetor Keihin CVK30 x 2
Ignition Digital
Transmission Six-speed
Final drive O-Ring Chain
Cooling System Liquid
Frame Type Semi-double cradle, high-tensile steel
Rake/Trail 26 degrees / 3.2 in.
Front Tire Size 110/70-17
Rear Tire Size 130/70-17
Wheelbase 55.1 in.
Front Suspension / Wheel Travel 37mm hydraulic telescopic fork / 4.7 in.
Rear Suspension / Wheel Travel Bottom-Link UNI-TRAK® with 5-way adjustable preload / 5.1 in.
Front Brakes Single 290mm hydraulic disc with two-piston caliper
Rear Brakes Single 220mm petal disc with two-piston caliper
Fuel Capacity 4.8 gal.
Seat Height 30.5 in.
Curb Weight 374.9 lbs.
Overall Length 82.1 in.
Overall Width 28.1 in.
Overall Height 43.7 in.
Color Choices Metallic Island Blue, Passion Red, Lime Green/Pearl Stardust White, Ebony/Candy Persimmon Red
Warranty 12 months
Kawasaki Protection Plus 12, 24, 36, 48 months