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Year
2023
Year
2023
Parent Company
KTM
Parent Company
Kawasaki
Generic Type (Primary)
Youth
Generic Type (Primary)
Off-Road
Make
KTM
Make
Kawasaki
Display Name
SX 50 Factory Edition
Display Name
KX™ 450
Manufacturer Country
Austria
Manufacturer Country
Japan
Introduction Year
2021
Introduction Year
2006
Manufacturer Recommend Minimum Age
4
Manufacturer Recommend Minimum Age
-
Photo Gallery
Standard
Photo Gallery
Standard
Representative Image
-
Representative Image
No
Price
Standard
Price
Standard
MSRP
$5,599
MSRP
$9,599
Destination Charge
385
Destination Charge
435
Warranty (Months/Condition)
1 / Limited
Warranty (Months/Condition)
-
Engine
Standard
Engine
Standard
Engine Type
Single-Cylinder
Engine Type
Single-Cylinder
Cylinders
1
Cylinders
1
Engine Stroke
2-Stroke
Engine Stroke
4-Stroke
Cooling
Liquid
Cooling
Liquid
Valve Configuration
Reed Valve
Valve Configuration
DOHC
Starter
Kick
Starter
Electric
Fuel Type
Gas / Oil Premix
Fuel Type
Gas
Fuel Requirements
Premium
Fuel Requirements
Regular
Carburetion
Standard
Carburetion
Standard
Carburetion Brand
Dell'Orto
Carburetion Brand
Keihin
Fuel Injector
No
Fuel Injector
Yes
Carburetor
Yes
Carburetor
No
Number Of Carburetors
1
Number Of Carburetors
-
Carburetion Type
Carburetor
Carburetion Type
Fuel Injected
Parental Controls
Standard
Parental Controls
-
Speed Governor
Yes
Speed Governor
No
Bore (mm/in)
39.5 / 1.56
Bore (mm/in)
96 / 3.78
Stroke (in/mm)
1.57 / 40
Stroke (in/mm)
2.45 / 62.1
Displacement (cc/ci)
49 / 3
Displacement (cc/ci)
449 / 27.4
Carburetor Size (mm)
19
Carburetor Size (mm)
-
Valves
-
Valves
4
Valves Per Cylinder
-
Valves Per Cylinder
4
Compression Ratio
-
Compression Ratio
12.5:1
Fuel Injector Size (mm)
-
Fuel Injector Size (mm)
44
Transmission
Standard
Transmission
Standard
Transmission Type
Automatic
Transmission Type
Manual
Number Of Speeds
1
Number Of Speeds
5
Reverse
No
Reverse
No
Final Drive Ratio
3.64
Final Drive Ratio
-
Primary Drive (Rear Wheel)
Chain
Primary Drive (Rear Wheel)
Chain
Dimensions
Standard
Dimensions
Standard
Weight
Standard
Weight
Standard
Capacities
Standard
Capacities
Standard
Performance
Standard
Performance
Standard
Wheelbase (in/mm)
40.6 / 1032
Wheelbase (in/mm)
58.5 / 1485.9
Ground Clearance (in/mm)
9.9 / 252
Ground Clearance (in/mm)
13.4 / 340.4
Dry Weight (lbs/kg)
91.5 / 41.5
Dry Weight (lbs/kg)
232.2 / 105.3
Fuel Capacity (gal/l)
0.6 / 2.3
Fuel Capacity (gal/l)
1.64 / 6.2
Engine Displacement to Weight (cc)
0.54
Engine Displacement to Weight (cc)
1.93
Length (in/mm)
-
Length (in/mm)
86 / 2184.4
Width (in/mm)
-
Width (in/mm)
32.3 / 820.4
Height (in/mm)
-
Height (in/mm)
49.8 / 1264.9
Wet Weight (lbs/kg)
-
Wet Weight (lbs/kg)
243.3 / 110.4
Construction
Standard
Construction
Standard
Frame
Chromium Molybdenum
Frame
Aluminum
Body Material
Plastic
Body Material
Plastic
Foot Pegs
Standard
Foot Pegs
Standard
Foot Peg Location
Driver
Foot Peg Location
Driver
Hand Grips
Standard
Hand Grips
Standard
Handlebars
Standard
Handlebars
Standard
Handlebar Pads
Standard
Handlebar Pads
Standard
Exterior Guards
Standard
Exterior Guards
Standard
Belt Guard
No
Belt Guard
No
Brush Guard
No
Brush Guard
-
Chain Guard
Yes
Chain Guard
-
Chassis Protectors
No
Chassis Protectors
-
Drive Shaft Guard
No
Drive Shaft Guard
No
Engine Case Guard
No
Engine Case Guard
Yes
Exhaust Guard
Yes
Exhaust Guard
Yes
Fork Guards
Yes
Fork Guards
Yes
Hand Guards
No
Hand Guards
-
Light Guard
No
Light Guard
No
Saddle Bag Guard
No
Saddle Bag Guard
No
Exterior Covers
Standard
Exterior Covers
Standard
Fuel Tank Cover
No
Fuel Tank Cover
-
Side Cover
No
Side Cover
Yes
Front Fender
Standard
Front Fender
Standard
Rear Fender
Standard
Rear Fender
Standard
Stand
Standard
Stand
Standard
Stand Type
Kick
Stand Type
Kick
Skid Plate
Optional
Skid Plate
Standard
Adjustable
-
Adjustable
Yes
Pocket
-
Pocket
No
Steering Control
Handlebar
Steering Control
Handlebar
Front Suspension Brand Name
WP XACT
Front Suspension Brand Name
Showa®
Front Suspension Type
Inverted Fork
Front Suspension Type
Inverted Fork
Front Adjustable Fork Pre-Load
Yes
Front Adjustable Fork Pre-Load
No
Front Adjustable Rebound Damping
Yes
Front Adjustable Rebound Damping
Yes
Front Central Suspension Strut
No
Front Central Suspension Strut
No
Steering Damper
No
Steering Damper
No
Rear Suspension Brand Name
WP XACT
Rear Suspension Brand Name
UNI-TRAK®
Rear Suspension Type
Twin Sided Swing Arm
Rear Suspension Type
Twin Sided Swing Arm
Rear Suspension Material
Aluminum
Rear Suspension Material
Aluminum
Rear Adjustable Shock / Spring Pre-Load
Yes
Rear Adjustable Shock / Spring Pre-Load
Yes
Rear Adjustable Rebound Damping
Yes
Rear Adjustable Rebound Damping
Yes
Number Rear Shock Absorbers
1
Number Rear Shock Absorbers
1
Air Adjustable
No
Air Adjustable
No
Front Suspension Size (in/mm)
1.3 / 35
Front Suspension Size (in/mm)
1.9 / 49
Front Travel (in/mm)
8.1 / 205
Front Travel (in/mm)
12 / 304.8
Rear Travel (in/mm)
7.3 / 185
Rear Travel (in/mm)
12.1 / 307.3
Wheels
Standard
Wheels
Standard
Wheels Composition
Aluminum
Wheels Composition
Aluminum
Tube / Tubeless
Tubed
Tube / Tubeless
Tubed
Tires
Standard
Tires
Standard
Tire Brand
Dunlop®
Tire Brand
Dunlop®
Front Tire Speed Rating
J
Front Tire Speed Rating
M
Front Wheel Diameter
12
Front Wheel Diameter
21
Rear Tire Speed Rating
J
Rear Tire Speed Rating
M
Rear Wheel Diameter
10
Rear Wheel Diameter
19
Front Wheel Width (in)
2.5
Front Wheel Width (in)
1.6
Rear Wheel Width (in)
2.75
Rear Wheel Width (in)
2.15
Front Tire (Full Spec)
Dunlop® GEOMAX MX53 2.50 X 12 42J
Front Tire (Full Spec)
Dunlop® Geomax MX3SF: 80/100-21 51M
Rear Tire (Full Spec)
Dunlop® GEOMAX MX53 2.75 X 10 38J
Rear Tire (Full Spec)
Dunlop® Geomax MX3S: 120/80-19 63M
Front Tire Width
-
Front Tire Width
80
Front Tire Aspect Ratio
-
Front Tire Aspect Ratio
100
Rear Tire Width
-
Rear Tire Width
120
Rear Tire Aspect Ratio
-
Rear Tire Aspect Ratio
80
Brakes
Standard
Brakes
Standard
Brake Brand Name
Formula
Brake Brand Name
-
Front Brake Type
Hydraulic Disc
Front Brake Type
Disc
Rear Brake Type
Hydraulic Disc
Rear Brake Type
Disc
Front Brake Diameter (in/mm)
6.3 / 160
Front Brake Diameter (in/mm)
10.6 / 270
Rear Brake Diameter (in/mm)
6.3 / 160
Rear Brake Diameter (in/mm)
9.8 / 250
Seat Type
One-Piece
Seat Type
One-Piece
Seat Location
Driver
Seat Location
Driver
Seat Material
Vinyl
Seat Material
Vinyl
Adjustable
Yes
Adjustable
No
Folding
No
Folding
No
Seat Specifications
Standard
Seat Specifications
Standard
Number Of Seats
1
Number Of Seats
1
Seat Height (in/mm)
26.2 / 665
Seat Height (in/mm)
37.6 / 955
Backrest Logo Plate
-
Backrest Logo Plate
No
Lumbar Adjustment
-
Lumbar Adjustment
No
Detachable
-
Detachable
No
Digital Instrumentation
Optional
Digital Instrumentation
-
Tachometer
Optional
Tachometer
-
Lap Timer
Optional
Lap Timer
-
Storage Cover
Optional
Storage Cover
-
Camouflage Trim
-
Camouflage Trim
No
Paint
Standard
Paint
Standard
Metallic
No
Metallic
No
Decal Kit
Standard
Decal Kit
Standard
Tinted
-
Tinted
No
Height Adjustable
-
Height Adjustable
No
Windshield Lowers
-
Windshield Lowers
No
Adjustable
-
Adjustable
No
Adjustable Handlebars
-
Adjustable Handlebars
Standard
Adjustable Levers
-
Adjustable Levers
Standard
Satellite
-
Satellite
No