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2018 Kawasaki KX 450F
2018 Kawasaki KX 450F

Specs

General Information

Manufacturer
Kawasaki
Kawasaki
Model Year
2018
2018
Model
KX 450F
KX 450F
Model Code
KX450HJF
KX450HJF
Color
Lime Green
Lime Green

Brakes/Wheels/Tires

Brakes

Front - Single semi-floating 270 mm Braking® petal disc with dual-piston caliper

Rear - Single 240 mm Braking® petal disc with single-piston caliper

Front - Single semi-floating 270 mm Braking® petal disc with dual-piston caliper

Rear - Single 240 mm Braking® petal disc with single-piston caliper

Tires

Front - 80/100-21

Rear - 120/80-19

Front - 80/100-21

Rear - 120/80-19

Dimensions

Length
Overall - 86.4 in.
Overall - 86.4 in.
Height
Overall - 50.4 in.
Overall - 50.4 in.
Width
Overall - 32.3 in.
Overall - 32.3 in.
Weight
Curb - 239.8 lb.
Curb - 239.8 lb.
Ground Clearance
13.2 in.
13.2 in.
Wheelbase
58.9 in.
58.9 in.
Seat Height
37.4 in.
37.4 in.

Drivetrain

Transmission
5-speed, return shift
5-speed, return shift
Final Drive
Chain
Chain

Engine

Engine
4-stroke, 1-cylinder, DOHC
4-stroke, 1-cylinder, DOHC
Cooling
Water
Water
Displacement
449 cc
449 cc
Bore x Stroke
96 x 62.1 mm
96 x 62.1 mm
Fuel System
DFI® with 43 mm Keihin throttle body
DFI® with 43 mm Keihin throttle body
Ignition
Digital DC-CDI
Digital DC-CDI
Fuel Capacity
1.6 gal.
1.6 gal.

Operational

Frame
Aluminum perimeter
Aluminum perimeter
Suspension

Front - Inverted Showa SFF-Air TAC fork with Triple Air Chamber, DLC coated sliders, 22-position compression and 20-position rebound damping adjustment; 12 in. travel

Rear - Uni-Trak® linkage system and Showa shock, 19-position low-speed and 4-turns high-speed compression damping, 22-position rebound damping and fully adjustable spring preload; 12 in. travel

Front - Inverted Showa SFF-Air TAC fork with Triple Air Chamber, DLC coated sliders, 22-position compression and 20-position rebound damping adjustment; 12 in. travel

Rear - Uni-Trak® linkage system and Showa shock, 19-position low-speed and 4-turns high-speed compression damping, 22-position rebound damping and fully adjustable spring preload; 12 in. travel

Rake
28.2°
28.2°
Trail
5 in.
5 in.

Other

Warranty
Not available
Not available

Features

Engine

  • CHAMPIONSHIP-PROVEN POWER: The KX™450F motorcycle is lightweight and powerful due to innovative race-proven components. Pick a category to start exploring.
  • ENGINE: Race-team-inspired bridged-box bottom piston is lightweight and designed to match intake valves to optimize combustion efficiency for maximum performance at all rpms. The powerful and lightweight engine delivers instant throttle response, broad power delivery and incredible peak power.
  • EXHAUST: Exhaust header features an integrated resonator for crisp throttle response at low rpm and reduced exhaust sound level.
  • INTAKES: Rear seat intakes ensure clean airflow and contribute to improved throttle response

Frame and Styling

  • SLIM, LIGHTWEIGHT CHASSIS: Lightweight aluminum perimeter frame for sharp handling. Triple clamp offers optimal stability on corner entry to allow quick turn-in. Slim frame spars and narrow shrouds allow easy rider movement. Optimized swingarm rigidity for maximum rear wheel traction.
  • AGGRESSIVE BODYWORK: Lightweight bodywork features in-mold graphics for a durable, aggressive look. Lightweight bodywork with smooth, seamless surface at the rider's contact points.
  • ERGO-FIT™ ADJUSTABILITY: The adjustable handlebar mounts provide a choice of 4-positions (35 mm range of adjustment) enabling the rider to set-up their ideal riding position. Factory-style Renthal handlebar and handlebar pad come standard.
  • ERGO-FIT™ FOOTPEGS: Two-position adjustable footpegs help reduce knee angle when seated. Footpegs allow the rider to adjust center of gravity by 5 mm.

Fuel Mapping

  • ADVANCED FUEL MAPPING TECHNOLOGY: The KX™450F motorcycle features several advanced ignition and fuel-mapping systems for precise adjustability.
  • KX FI CALIBURATION KIT™: Handheld KX FI calibration controller* eliminates need for laptop and 12Vbattery at the track. Allows the user to adjust fuel and ignition settings for ultimate performance. Can store up to 7 preset maps for different tracks. *Sold Separately as a Kawasaki Genuine Accessory
  • DFI® COUPLERS: Factory-tuned power settings with plug-and-play versatility. Select a coupler to access one of the 3 different pre-set engine maps. Standard, hard and soft terrain setting options.
  • LAUNCH CONTROL MODE: Maximizes traction and acceleration out of the gate. Race-team-derived feature for grabbing the holeshot. Engages with a press of a button. Functions in first and second gears. Precise ignition timing helps ensure quicker acceleration with less slippage.

Suspension

  • SHOWA SFF-AIR TAC FORK: Lightweight design with tuned rigidity to match chassis dynamics and optimize front end feel. Features low-friction fork seals and optimized valve settings for smoothaction and progressive damping.

Engine

  • CHAMPIONSHIP-PROVEN POWER: The KX™450F motorcycle is lightweight and powerful due to innovative race-proven components. Pick a category to start exploring.
  • ENGINE: Race-team-inspired bridged-box bottom piston is lightweight and designed to match intake valves to optimize combustion efficiency for maximum performance at all rpms. The powerful and lightweight engine delivers instant throttle response, broad power delivery and incredible peak power.
  • EXHAUST: Exhaust header features an integrated resonator for crisp throttle response at low rpm and reduced exhaust sound level.
  • INTAKES: Rear seat intakes ensure clean airflow and contribute to improved throttle response

Frame and Styling

  • SLIM, LIGHTWEIGHT CHASSIS: Lightweight aluminum perimeter frame for sharp handling. Triple clamp offers optimal stability on corner entry to allow quick turn-in. Slim frame spars and narrow shrouds allow easy rider movement. Optimized swingarm rigidity for maximum rear wheel traction.
  • AGGRESSIVE BODYWORK: Lightweight bodywork features in-mold graphics for a durable, aggressive look. Lightweight bodywork with smooth, seamless surface at the rider's contact points.
  • ERGO-FIT™ ADJUSTABILITY: The adjustable handlebar mounts provide a choice of 4-positions (35 mm range of adjustment) enabling the rider to set-up their ideal riding position. Factory-style Renthal handlebar and handlebar pad come standard.
  • ERGO-FIT™ FOOTPEGS: Two-position adjustable footpegs help reduce knee angle when seated. Footpegs allow the rider to adjust center of gravity by 5 mm.

Fuel Mapping

  • ADVANCED FUEL MAPPING TECHNOLOGY: The KX™450F motorcycle features several advanced ignition and fuel-mapping systems for precise adjustability.
  • KX FI CALIBURATION KIT™: Handheld KX FI calibration controller* eliminates need for laptop and 12Vbattery at the track. Allows the user to adjust fuel and ignition settings for ultimate performance. Can store up to 7 preset maps for different tracks. *Sold Separately as a Kawasaki Genuine Accessory
  • DFI® COUPLERS: Factory-tuned power settings with plug-and-play versatility. Select a coupler to access one of the 3 different pre-set engine maps. Standard, hard and soft terrain setting options.
  • LAUNCH CONTROL MODE: Maximizes traction and acceleration out of the gate. Race-team-derived feature for grabbing the holeshot. Engages with a press of a button. Functions in first and second gears. Precise ignition timing helps ensure quicker acceleration with less slippage.

Suspension

  • SHOWA SFF-AIR TAC FORK: Lightweight design with tuned rigidity to match chassis dynamics and optimize front end feel. Features low-friction fork seals and optimized valve settings for smoothaction and progressive damping.