KX design philosophy is simple: put mid-level to expert riders on the top step of the podium. This philosophy has not changed since the creation of the KX brand over

40 years ago. With 32 AMA Supercross titles to its credit, the most of any manufacturer, KX has a proven record of powering champions. Significant weight reduction to engine and chassis for 2016 makes the KX450F the lightest machine in its class. The resultant sharper handling is complemented by a slimmer chassis and an even more powerful engine, further increasing its circuit potential.

DIMENSIONS

Overall length 2,185 mm

Overall width 830 mm

Overall height 1,275 mm

Wheelbase 1,485 mm

Road clearance 340 mm

Seat height 955 mm

Curb mass 110.0 kg

Fuel capacity 6.2 litres

ENGINE

Type 4st, 1-cyl, DOHC, W/C

Bore x Stroke 96.0 x 62.1 mm

Displacement 449 cm3

Compression ratio 12.5:1

Fuel supply Fuel injection (φ44 mm x 1)

Lubrication system Forced Lub. Semi-dry sump

Starting system Electric

Ignition system Digital DC-CDI

DRIVETRAIN

Driving system Chain

Transmission 5-speed, return

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)

Primary reduction ratio 2.727 (60/22)

Final reduction ratio 3.846 (50/13)

Clutch type (Primary) Wet multi-disc, Manual

FRAME

Type TUBULAR, SEMI DOUBLE CRADLE

Suspension: Front Telescopic (USD) fork

Rear New Uni Trak Swingarm

Wheel travel: Front 305 mm

Rear 307 mm

Caster (Rake angle) 27.6 o

Trail 122 mm

Steering angle (left/right) 42o / 42o

Tyre: Front 80/100-21 51M

Rear 120/80-19 63M

Brake: Front Type Single disc

Effect. dia 241 mm

Rear Type Single disc

Effect. dia 225 mm