- 5-speed, return
- Fuel injection: ø43 mm x 1 (Keihin)
- 449 L
The Kawasaki KX 450F offers a high-quality sports bike that you can take with you wherever you want to go.
For the 2013 model, the bike is complemented with four different handlebar positions and two footpeg positions. For the frame, the KX 450F offers a total width reduction of 4mm across the main frame spars, giving it the most slender mid-section ever. Furthermore, this vehicle make use of Uni-Trak rear suspension linkage that is now slimmer than ever before. Along with the Kayaba rear shock and Kayaba Air-Oil-Separate forks up front, the AOS system controls oil and air in separate chambers for stable damping performance.
As for the engine, the KX 450F features virtually unlimited ignition mapping capabilities due to its enhanced Digital Fuel Injection (DFI) system. The bike’s high power capabilities and the wider power band comes as the result of many engine refreshments while the five-speed transmission is also overhauled for improved shifting.
In terms of styling, the bike will definitely catch your attention, thanks to its slim frame and the blue alumite finish on the oil cap that matches with the blue finish on the suspension adjusters and splashes of color in the new graphics.
Find out more about the Kawasaki KX450F after the jump.
Kawasaki KX 450F
From controlled race launches to plug-and-play tuning, the slimmer, ultra powerful KX450F is first to feature a Pneumatic Spring Fork. Built to Finish First – just ask Ryan Villopoto.
New Uni-Trak rear suspension
Linkage mounts below the swingarm for more precise suspension tuning. Dual compression adjustability offers a wide range of tuning options. Kashima coat on the tank cylinder improves action, additionally for MY13 revised damping settings match the new front fork.
Pneumatic Spring Fork (PSF)
The KX450F is the first mass-production motocrosser to features this next-generation fork technology. Shock absorption duties are carried out using pressurized air instead of springs. Reduced weight, easier adjustability and wider setting range are some of the advantages.
Complementing the new front fender design and white rear fender, factory-style graphic, black alumite’ rims, black fork guards, blue alumite’ finish on the suspension adjusters, and a blue finish on some of the engine trim give the KX450F the looks to match its highly tuned performance.
Factory-inspired engine tuning
Revised high performance piston (0.2mm lower crown featuring sloped edges), intake cams and ECU settings resul in an increased performance in ultra-low to mid range torque.
Petal brake discs
The KX450F features petal brake discs front and rear. In addition to helping reduce unsprung weight, the wave shapes of the petal discs help clean the brake pads for more efficient braking performance.
Slim racer-friendly rider interface
The KX450F’s slim aluminum perimeter frame is a lightweight construction composed of forged, extruded and cast parts. Chassis balance and settings were all set to suit race-experienced riders. Designed with rider ergonomics in mind, offers a slim rider interface and racer-friendly ergonomics. New handle grips enable a more compact riding position.
Race oriented suspension
A super-hard Diamond-Like Carbon reduces sliding friction (and stiction). The coating is even effective when exposed to lateral forces that would hamper slide action. The surface hardness minimises scratches and damage to the tubes.
Precision engine tuning: KX FI Calibration Kit (option)
The KX FI Calibration Kit enables expert riders to adjust engine characteristics (by rewriting actual data maps) to suit their preference, record riding data, and analyse their riding data to further fine-tune their settings.
Hard-hitting fuel-injected power
Fuel-injected 449 cm³ liquid-cooled, 4-stroke Single delivers hard-hitting power from low- through high-rpm. The broad powerband and responsive throttle offer a broad spread of torquey response that enables racers to get on the gas and go even from down low.
Adjustable footpeg position
Adjustable footpeg brackets enable riders to lower their footpeg position 5 mm. In the lower position, CofG is lowered as is the rider’s point of view, adding to both physical and psychological stability.
Easy engine tuning: DFI Setting Data Selection (3 map choices)
Using provided DFI couplers, riders are able to easily switch to suit riding conditions. Plugging in each of the 4-pin couplers activates the corresponding engine map. Each of the three maps can be reprogrammed using the optional KX FI Calibration Kit.
The holeshot advantage: Launch Control Mode
The 2013 KX450F features a launch control system similar to that on our factory racers. With the simple press of a button, riders can activate a separate engine map designed to ensure efficient race starts in slippery conditions.
Adjustable handlebar position
Upper triple clamp with two sets of handle mount slots and reversible handle mounts offer riders a choice of four handle positions to choose from: 25 mm FWD, 15 mm FWD, STD and 10 mm BK.
|Fuel system||Fuel injection: ø43 mm x 1 (Keihin)|
|Lubrication||Forced lubrication, semi-dry sump|
|Engine type||Liquid-cooled, 4-stroke Single|
|Bore x stroke||96.0 x 62.1 mm|
|Valve/Induction system||DOHC, 4 valves|
|Clutch||Wet multi-disc, manual|
|Primary reduction ratio||2.727 (60/22)|
|Gear ratios: 1st||1.750 (28/16)|
|Gear ratios: 2nd||1.412 (24/17)|
|Gear ratios: 3rd||1.188 (19/16)|
|Gear ratios: 4th||1.000 (19/19)|
|Gear ratios: 5th||0.875 (21/24)|
|Final reduction ratio||3.846 (50/13)|
|Frame type||Perimeter, aluminium|
|Rake/Trail||26.9° / 113 mm|
|Wheel travel, front||314 mm|
|Wheel travel, rear||315 mm|
|Tyre, front||80/100-21 51M|
|Tyre, rear||120/80-19 63M|
|Steering angle, left / right||42° / 42°|
|Suspension, front||Type: 48 mm upside-down AOS-type Pneumatic Spring Fork (PSF) Compression damping: 22-way Rebound damping: 20-way|
|Suspension, rear||Type: New Uni-Trak Compression damping: 22-way (low-speed), 2-turns or more (high-speed) Rebound damping: 33-way Spring preload: Fully adjustable|
|Brakes, front||Type: Single rigid-mounted 250 mm petal disc Caliper: Dual-piston|
|Brakes, rear||Type: Single 240 mm petal disc Caliper: Single-piston|
|Dimensions (L x W x H)||2,180 mm x 820 mm x 1,275 mm|
|Ground Clearance||330 mm|
|Seat height||955 mm|
|Fuel capacity||6,2 litres|
|Curb Mass||112,5 kg|
Totalmotorcycle ---- "The KX450F’s best-in-class performance is delivered through the highest level of rider adjustability and the most progressive electronics package ever seen on a production motocross bike."
Ultimatemotorcycling ---- "In the past two years, Ryan Villopoto has more than proven the worthiness of Kawasaki’s KX450F."
Dirtrider ---- "On the track, the KX450F definitely has a race-inspired motor. The bike snaps extremely hard off-idle, so much so that it can cause you to blow out of your line if you’re not careful."
Motocross ---- "The 2012 KX450F is still a powerhouse in the motor department, yet Kawasaki set out to make it better. "