TOP FEATURES

Renthal Fatbar

A factory-style ø28.6 mm Renthal aluminium Fatbar, a popular aftermarket part, is now a standard feature.

Light Weight & Light, Nimble Handling

Complementing the powerful engine, light, nimble handling contributes to the KX450’s quick lap times. While the addition of electric start and the return to a coil-spring fork add weight, efforts were made to keep the weight gain to a minimum. The result is the KX450’s leanest chassis to date, and a highly-competitive, low overall weight of only 110.0 kg.

Hydraulic Clutch

Kawasaki’s first hydraulic clutch on a motocrosser offers more direct feel and lighter lever action.

Electric Start

Being able to restart an engine quickly after a spill can mean the difference between keeping your lead, or having to fight your way back through the pack.

Easy Engine Tuning: DFI Setting Data Selection

Using the provided DFI couplers, riders can quickly and easily access their choice of three maps (standard, hard, soft) provided in the ECU.

SPECIFICATIONS

ENGINE & TRANSMISSION

TYPELiquid-cooled, 4-stroke Single
DISPLACEMENT449cc
BORE AND STROKE96.0 x 62.1 mm
COMPRESSION RATIO12.5:1
VALVE SYSTEMDOHC, 4 valves
FUEL SYSTEMFuel injection: ø44 mm x 1
FUEL TYPE / MINIMUM OCTANE RATING
IGNITIONDigital DC-CDI
STARTINGElectric
LUBRICATIONForced lubrication, semi-dry sump
TRANSMISSION5 speed, return
MAXIMUM POWER
MAXIMUM POWER WITH RAM AIR
MAXIMUM TORQUE
ELECTRONIC RIDER AID

 

DIMENSIONS & CHASSIS

FRAME TYPEPerimeter, aluminium
RAKE / TRAIL27.6° / 122 mm
TYRE – FRONT80/100-21 51M
TYRE – REAR120/80-19 63M
WHEELBASE1,485 mm
GROUND CLEARANCE340 mm
SEAT HEIGHT955 mm
CURB MASS110.2 kg
FUEL CAPACITY6.2 litres
OVERALL DIMENSIONS (L X W X H)2,185 x 820 x 1,265 mm

BRAKES & SUSPENSION

FRONT / WHEEL TRAVELø49 mm inverted telescopic fork with adjustable compression and rebound damping / 305 mm
REAR / WHEEL TRAVELNew Uni Trak with adjustable dual-range (high/low-speed) compression damping, adjustable rebound damping and adjustable preload / 307 mm
BRAKE – FRONTSingle semi-floating ø270 mm petal disc
CALIPER – FRONTDual-piston
BRAKE – REARSingle ø250 mm petal disc
CALIPER – REARSingle-piston