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Model Type
Sport
Model Type
-
MSRP
$7,849
MSRP
-
Warranty
12
Warranty
-
Insurance
Insurance
-
Generic Type (Primary)
Sport
Generic Type (Primary)
Youth
Manufacturer Country
Japan
Manufacturer Country
Japan
Introduction Year
2009
Introduction Year
-
Manufacturer Recommend Minimum Age
16
Manufacturer Recommend Minimum Age
6
Parent Company
Kawasaki
Parent Company
Kawasaki
Display Name
KFX® 450R Monster Energy
Display Name
KFX® 50
Year
2009
Year
2009
Make
Kawasaki
Make
Kawasaki
Engine Type
Single-Cylinder
Engine Type
Single-Cylinder
Cylinders
1
Cylinders
1
Engine Stroke
4-Stroke
Engine Stroke
4-Stroke
Cooling
Liquid
Cooling
Air
Valves
4
Valves
2
Valves Per Cylinder
4
Valves Per Cylinder
2
Valve Configuration
DOHC
Valve Configuration
SOHC
Bore (mm/in)
96 / 3.78
Bore (mm/in)
39 / 1.54
Stroke (mm/in)
62.1 / 2.45
Stroke (mm/in)
-
Displacement (cc/ci)
449 / 27.4
Displacement (cc/ci)
49.5 / 3
Starter
Electric
Starter
Electric / Kick
Fuel Requirements
Regular
Fuel Requirements
Regular
Fuel Type
Gas
Fuel Type
Gas
Carburetion Brand
Keihin
Carburetion Brand
Keihin
Fuel Injector
Yes
Fuel Injector
No
Fuel Injector Size (mm)
42
Fuel Injector Size (mm)
-
Carburetor
No
Carburetor
Yes
Carburetion Type
Fuel Injected
Carburetion Type
Carburetor
Engine
-
Engine
Standard
Compression Ratio
-
Compression Ratio
10.8:1
Carburetion
-
Carburetion
Standard
Number Of Carburetors
-
Number Of Carburetors
1
Parental Controls
-
Parental Controls
Standard
Speed Governor
-
Speed Governor
Yes
Kill Switch / Tether Cord
-
Kill Switch / Tether Cord
Standard
Stroke (in/mm)
-
Stroke (in/mm)
1.63 / 41.4
Carburetor Size (mm)
-
Carburetor Size (mm)
16
Transmission Type
Manual
Transmission Type
Continuously Variable (CVT)
Number Of Speeds
5
Number Of Speeds
1
Primary Drive (Rear Wheel)
Chain
Primary Drive (Rear Wheel)
Chain
Reverse
Yes
Reverse
No
Hi / Low Range
No
Hi / Low Range
No
Transmission
-
Transmission
Standard
Adjustable Throttle
-
Adjustable Throttle
Standard
Wheels Composition
Aluminum
Wheels Composition
-
Tube / Tubeless
Tubeless
Tube / Tubeless
-
Front Tire Diameter (in)
21
Front Tire Diameter (in)
-
Rear Tire Diameter (in)
20
Rear Tire Diameter (in)
-
Chromed
No
Chromed
-
Front Tire Width
7
Front Tire Width
-
Front Wheel Diameter
10
Front Wheel Diameter
-
Rear Tire Width
10
Rear Tire Width
-
Rear Wheel Diameter
9
Rear Wheel Diameter
-
Front Tire (Full Spec)
AT 21 X 7-10
Front Tire (Full Spec)
-
Rear Tire (Full Spec)
AT 20 X 10-9
Rear Tire (Full Spec)
-
Front Brake Type
Dual Hydraulic Disc
Front Brake Type
Dual Drum
Front Brake Diameter (in/mm)
6.4 / 163
Front Brake Diameter (in/mm)
-
Rear Brake Type
Disc
Rear Brake Type
Hydraulic Disc
Rear Brake Diameter (in/mm)
7.9 / 200
Rear Brake Diameter (in/mm)
-
Brakes
-
Brakes
Standard
Linked Brake System Front to Rear
-
Linked Brake System Front to Rear
Standard
Front Suspension Type
Double A-Arm
Front Suspension Type
Independent A-Arm
Front Travel (in/mm)
8.5 / 215.9
Front Travel (in/mm)
2.8 / 71.1
Front Adjustable Fork Pre-Load
No
Front Adjustable Fork Pre-Load
No
Front Adjustable Rebound Damping
No
Front Adjustable Rebound Damping
No
Front Central Suspension Strut
No
Front Central Suspension Strut
No
Steering Damper
No
Steering Damper
No
Rear Suspension Type
Swing Arm
Rear Suspension Type
Swing Arm
Rear Travel (in/mm)
10 / 254
Rear Travel (in/mm)
2.9 / 73.7
Rear Adjustable Shock / Spring Pre-Load
Yes
Rear Adjustable Shock / Spring Pre-Load
No
Rear Adjustable Rebound Damping
Yes
Rear Adjustable Rebound Damping
No
Number Rear Shock Absorbers
1
Number Rear Shock Absorbers
1
Rear Suspension Material
Aluminum
Rear Suspension Material
Steel
Air Adjustable
No
Air Adjustable
No
Front Stabilizer Bar
-
Front Stabilizer Bar
No
Rear Stabilizer Bar
-
Rear Stabilizer Bar
No
Steering Type
Manual
Steering Type
Manual
Steering Control
Handlebar
Steering Control
Handlebar
Length (ft)
5.92
Length (ft)
-
Width (in/mm)
46.1 / 1170.9
Width (in/mm)
-
Height (in/mm)
41.9 / 1064.3
Height (in/mm)
-
Wheelbase (in/mm)
49.4 / 1254.8
Wheelbase (in/mm)
-
Ground Clearance (in/mm)
4.3 / 109.2
Ground Clearance (in/mm)
-
Length (ft/ft)
5
Length (ft/ft)
-
Length (ft/in)
11.1
Length (ft/in)
-
Dry Weight (lbs/kg)
394.7 / 179
Dry Weight (lbs/kg)
-
Fuel Capacity (gal/l)
2.6 / 9.8
Fuel Capacity (gal/l)
-
Engine Displacement to Weight (cc)
1.14
Engine Displacement to Weight (cc)
-
Seat Type
One-Piece
Seat Type
One-Piece
Adjustable
No
Adjustable
No
Seat Material
Vinyl
Seat Material
Vinyl
Seat Location
Driver
Seat Location
Driver
Folding
No
Folding
No
Seat Height (in/mm)
30.9 / 784.9
Seat Height (in/mm)
25 / 635
Number Of Seats
1
Number Of Seats
1
Seat Specifications
-
Seat Specifications
Standard
Frame
Aluminum
Frame
Steel
Body Material
Plastic
Body Material
Plastic
Hand Grips
Standard
Hand Grips
Standard
Foot Peg Location
Driver
Foot Peg Location
-
Brush Guard
No
Brush Guard
No
CV Boot Cover
No
CV Boot Cover
No
Front Fender
Standard
Front Fender
Standard
Rear Fender
Standard
Rear Fender
Standard
Handlebars
Standard
Handlebars
Standard
Front Bumper
Standard
Front Bumper
Standard
Rear Bumper
Standard
Rear Bumper
Standard
Bash Plate (Front)
Yes
Bash Plate (Front)
-
Construction
-
Construction
Standard
Floor Boards
-
Floor Boards
Standard
Floor Board Location
-
Floor Board Location
Driver
Handlebar Pads
-
Handlebar Pads
Standard
Exterior Guards
-
Exterior Guards
Standard
Light Guard
-
Light Guard
No
Exterior Covers
-
Exterior Covers
Standard
Shock Cover
-
Shock Cover
No
Skid Plate
-
Skid Plate
Standard
Full Length Skid Plate
-
Full Length Skid Plate
No
A-Arm Skid Plate (Front/Rear)
-
A-Arm Skid Plate (Front/Rear)
No / No
Bash Plate (Front/Rear)
-
Bash Plate (Front/Rear)
Yes / No
Warranty (Months/Condition)
12 / Limited
Warranty (Months/Condition)
12 / Limited
Battery Warranty (Months)
0
Battery Warranty (Months)
-
Price
-
Price
Standard
MSRP
-
MSRP
$1,999
Driveline Type
4X2
Driveline Type
-
Number Of Driveline Modes
1
Number Of Driveline Modes
-
Rear Unlocking Differential
No
Rear Unlocking Differential
-
Rear Solid Axle
Yes
Rear Solid Axle
-
Headlight Mounts
Standard
Headlight Mounts
-
Halogen Headlight (s)
Standard
Halogen Headlight (s)
-
Headlight (s)
Standard
Headlight (s)
-
Light Type
Halogen
Light Type
-
Metallic
No
Metallic
-
Driveline Type
-
Driveline Type
4X2
Number Of Driveline Modes
-
Number Of Driveline Modes
1
Rear Unlocking Differential
-
Rear Unlocking Differential
No
Rear Solid Axle
-
Rear Solid Axle
Yes
Dimensions
-
Dimensions
Standard
Weight
-
Weight
Standard
Capacities
-
Capacities
Standard
Performance
-
Performance
Standard
Length (in/mm)
-
Length (in/mm)
55.1 / 1399.5
Width (in/mm)
-
Width (in/mm)
34.7 / 881.4
Height (in/mm)
-
Height (in/mm)
35.9 / 910
Wheelbase (in/mm)
-
Wheelbase (in/mm)
38 / 965.2
Ground Clearance (in/mm)
-
Ground Clearance (in/mm)
3.4 / 85.1
Dry Weight (lbs/kg)
-
Dry Weight (lbs/kg)
245 / 111.1
Fuel Capacity (gal/l)
-
Fuel Capacity (gal/l)
1.5 / 5.7
Engine Displacement to Weight (cc)
-
Engine Displacement to Weight (cc)
0.2
Wheels
-
Wheels
Standard
Wheels Composition
-
Wheels Composition
Steel
Chromed
-
Chromed
No
Tube / Tubeless
-
Tube / Tubeless
Tubeless
Tires
-
Tires
Standard
Front Tire Width
-
Front Tire Width
8
Front Wheel Diameter
-
Front Wheel Diameter
7
Rear Tire Width
-
Rear Tire Width
8
Rear Wheel Diameter
-
Rear Wheel Diameter
7
Front Tire Diameter (in)
-
Front Tire Diameter (in)
16
Rear Tire Diameter (in)
-
Rear Tire Diameter (in)
16
Front Tire (Full Spec)
-
Front Tire (Full Spec)
AT 16 X 8-7
Rear Tire (Full Spec)
-
Rear Tire (Full Spec)
AT 16 X 8-7
Paint
-
Paint
Standard
Metallic
-
Metallic
No
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