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 | |
Type | Liquid-cooled, 4-stroke Single |
Displacement | 449cc |
Bore and Stroke | 96.0 x 62.1 mm |
Compression ratio | 12.5:1 |
Valve system | DOHC, 4 valves |
Fuel system | Fuel injection: ø44 mm x 1 |
Fuel Type / Minimum Octane Rating | – |
Ignition | Digital DC-CDI |
Starting | Electric |
Lubrication | Forced lubrication, semi-dry sump |
Transmission | 5 speed, return |
Maximum power | – |
Maximum power with Ram Air | – |
Maximum torque | – |
Electronic Rider Aid |
Dimensions & Chassis | |
Frame Type | Perimeter, aluminium |
Rake / Trail | 27.6° / 122 mm |
Tyre – Front | 80/100-21 51M |
Tyre – Rear | 120/80-19 63M |
Wheelbase | 1,485 mm |
Ground clearance | 340 mm |
Seat height | 955 mm |
Curb mass | 110.2 kg |
Fuel capacity | 6.2 litres |
Overall Dimensions (L x W x H) | 2,185 x 820 x 1,265 mm |
Brakes & Suspension | |
Front / Wheel Travel | ø49 mm inverted telescopic fork with adjustable compression and rebound damping / 305 mm |
Rear / Wheel Travel | New Uni Trak with adjustable dual-range (high/low-speed) compression damping, adjustable rebound damping and adjustable preload / 307 mm |
Brake – Front | Single semi-floating ø270 mm petal disc |
Caliper – Front | Dual-piston |
Brake – Rear | Single ø250 mm petal disc |
Caliper – Rear | Single-piston |