2012 KX450F

2012 KX450F

The 2012 KX450F - leading the technological charge .. and leading on the race track!

The 2012 KX450F base package provides an excellent platform for experienced racers to win races in the top classes.

Complementing the race-winning performance of its predecessor’s highly acclaimed engine and nimble high-speed chassis, the 2012 KX450F adds numerous new factory-inspired features designed to give serious riders an edge on the track.

The MX industry’s first production-use Launch Control Mode, a new ECU with 3 easily selectable maps, and an adjustable riding position that riders can tailor to suit their size and riding style make the new KX450F an even more potent weapon on the track.

The combination is a proven race-winner, with Kawasaki racers regular podium finishers and Championship winners.


engine
 launch-control
 handlebar

Engine Improvements

The 2012, revisions to the KX450F's piston, cams and exhaust system result in a wider powerband and performance increases at both ends of the rev range.

New Launch Control Mode

Activated at the push of a button in either N, 1st or 2nd gears, the factory style launch control system increases the chance of getting a good start by helping riders maximise traction when starting.

New Adjustable Handlebar Position

A choice of four positions allows riders to tailor their riding position. Factory-style Renthal handlebar and pad come standard.
right

New Factory Styling

Complementing the Lime Green "flow line" created by the fenders, minimalist shrouds and seat, factory-style graphics, black alumnite rims, black fork guards, blue alumnite finish on the suspension adjusters give the 2012 KX450F the looks to match its highly tuned performance.

New Setting Adjustable ECU

The lightweight ecu was designed specifically to withstand the rigors of motocross racing. Using the provided DFI couplers, riders can quickly and easily access their choice of 3 maps (standard, hard or soft) provided in the new ECU.
slim-rider
 brakes
 rear-suspension

Slimmer Rider Interface

The slimmer new frame (4mm slimmer for 2012) new minimalist bodywork and a flatter tank-seat line offer a slimmer riding position and improved ergonomics, making it even easier for racers to go fast.

Revised Petal Disc Brakes

Revised front and rear petal disc brakes offer efficient braking performance. Rigid-mounted front disc offers reduced unsprung weight.

New Uni-Trak Rear Suspension

Linkage mounts below the swingarm for more precise suspension tuning. For 2012, less rigid tie-rod arms offer smoother action and improved bottoming resistance, which contributes to the improved rear wheel traction.

Factory Inspired Tuning

Works-base bridged-box bottom piston (unique Kawasaki feature used for the first time on a mass-production motocrosser on the MY10 KX450F) is just one of many features inspired by our factory racers.

New Adjustable Footpeg Position

On the 2012 KX450F, riders can choose from two footpeg postions to suit body size and preference.

 left
bwd1/4fwd
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Engine

Type Liquid-cooled, 4-stroke Single
Displacement 449 cm3
Bore and Stroke 96.0 x 62.1 mm
Compression ratio 12.5:1
Valve system DOHC, 4-Valve
Fuel Injection DFI w/ Keihin 43mm Throttle Body
Ignition Digital DC-CDI
Starting Primary kick
Lubrication Forced lubrication, semi-dry sump

Drivetrain

Transmission 5-speed, return*
Final drive Chain
Primary reduction ratio 2.727 (60/22)
Gear ratios: 1st 1.750 (28/16)*
2nd 1.412 (24/17)*
3rd 1.188 (19/16)*
4th 1.000 (19/19)*
5th 0.875 (21/24)*
Final reduction ratio 3.846 (50/13)
Clutch Wet multi-disc, manual

Frame

Type Perimeter, aluminium
Wheel travel: front 314 mm
rear 315 mm
Tyre: front 80/100-21 51M
rear 120/80-19 63M**
Caster (rake) 26.9°
Trail 113 mm
Steering angle (left/right) 42° / 42°

Suspension

Front: Type 48 mm up side down, Kayaba, AOS-type telescopic fork
Compression damping 22-way
Rebound damping 20-way
Rear: Type New Uni-Trak
Compression damping 22-way (low-speed), 2-turns or more (high-speed)
Rebound damping 22-way
Spring preload Fully adjustable

Brakes

Front: Type Single rigid mount 250 mm petal disc
Caliper Dual-piston
Rear: Type Single 240 mm petal disc
Caliper Single-piston

Dimensions

Overall length 2,180 mm
Overall width 820 mm
Overall height 1,275 mm
Wheelbase 1,480 mm
Ground clearance 330 mm
Seat height 955 mm
Curb Mass 113 kg (with full tank)
Fuel capacity 6.2 litres

* Changes as of 07mY

** JPN-only change as of 07mY

The specifications mentioned here apply to and have been achieved by production models under standard operating conditions. We intend only to give a fair description of the vehicle and its performance capabilities but these specifications may not apply to every machine supplied for sale. Kawasaki Heavy Industries, Ltd. reserves the right to alter specifications without prior notice. Equipment illustrated and specifications may vary to meet individual markets.

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