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Year
2007
Year
2023
Parent Company
KTM
Parent Company
KTM
Generic Type (Primary)
On-Off Road
Generic Type (Primary)
Youth
Make
KTM
Make
KTM
Display Name
EXC 450 Racing
Display Name
SX 50
Manufacturer Country
Austria
Manufacturer Country
Austria
Introduction Year
2007
Introduction Year
-
Manufacturer Recommend Minimum Age
16
Manufacturer Recommend Minimum Age
4
Photo Gallery
-
Photo Gallery
Standard
Price
Standard
Price
Standard
MSRP
$7,998
MSRP
$4,699
Warranty (Months/Condition)
6 / Limited
Warranty (Months/Condition)
1 / Limited
Destination Charge
-
Destination Charge
385
Engine
Standard
Engine
Standard
Engine Type
Single-Cylinder
Engine Type
Single-Cylinder
Cylinders
1
Cylinders
1
Engine Stroke
4-Stroke
Engine Stroke
2-Stroke
Cooling
Liquid
Cooling
Liquid
Valves
4
Valves
-
Valves Per Cylinder
4
Valves Per Cylinder
-
Valve Configuration
SOHC
Valve Configuration
Reed Valve
Compression Ratio
11:1
Compression Ratio
-
Starter
Electric / Kick
Starter
Kick
Fuel Type
Gas
Fuel Type
Gas / Oil Premix
Fuel Requirements
Regular
Fuel Requirements
Premium
Carburetion
Standard
Carburetion
Standard
Carburetion Brand
Keihin
Carburetion Brand
Dell'Orto
Fuel Injector
No
Fuel Injector
No
Carburetor
Yes
Carburetor
Yes
Number Of Carburetors
1
Number Of Carburetors
1
Carburetion Type
Carburetor
Carburetion Type
Carburetor
Bore (mm/in)
89 / 3.5
Bore (mm/in)
39.5 / 1.56
Stroke (in/mm)
2.84 / 72
Stroke (in/mm)
1.57 / 40
Displacement (cc/ci)
447.92 / 27.3
Displacement (cc/ci)
49 / 3
Carburetor Size (mm)
39
Carburetor Size (mm)
19
Parental Controls
-
Parental Controls
Standard
Speed Governor
-
Speed Governor
Yes
Transmission
Standard
Transmission
Standard
Transmission Type
Manual
Transmission Type
Automatic
Number Of Speeds
6
Number Of Speeds
1
Reverse
No
Reverse
No
Final Drive Ratio
3.21
Final Drive Ratio
3.64
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)
58.3 / 1481
Wheelbase (in/mm)
40.6 / 1032
Ground Clearance (in/mm)
15 / 380
Ground Clearance (in/mm)
9.9 / 252
Dry Weight (lbs/kg)
248.7 / 113.5
Dry Weight (lbs/kg)
91.5 / 41.5
Fuel Capacity (gal/l)
2.64 / 10
Fuel Capacity (gal/l)
0.6 / 2.3
Engine Displacement to Weight (cc)
1.94
Engine Displacement to Weight (cc)
0.54
Construction
Standard
Construction
Standard
Frame
Chromium Molybdenum
Frame
Chromium Molybdenum
Body Material
Plastic
Body Material
Plastic
Foot Pegs
Standard
Foot Pegs
Standard
Foot Peg Location
Driver
Foot Peg Location
Driver
Adjustable
No
Adjustable
-
Hand Grips
Standard
Hand Grips
Standard
Handlebars
Standard
Handlebars
Standard
Handlebar Pads
Optional
Handlebar Pads
Standard
Exterior Guards
Standard
Exterior Guards
Standard
Brush Guard
No
Brush Guard
No
Chain Guard
Yes
Chain Guard
-
Drive Shaft Guard
No
Drive Shaft Guard
No
Fork Guards
Yes
Fork Guards
Yes
Heel Guards
Yes
Heel Guards
-
Light Guard
No
Light Guard
No
Saddle Bag Guard
No
Saddle Bag Guard
No
Exterior Covers
Standard
Exterior Covers
Standard
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
Optional
Wind Deflector
Optional
Wind Deflector
-
Other Exterior
Optional
Other Exterior
-
Belt Guard
-
Belt Guard
No
Chassis Protectors
-
Chassis Protectors
No
Engine Case Guard
-
Engine Case Guard
No
Exhaust Guard
-
Exhaust Guard
Yes
Hand Guards
-
Hand Guards
No
Fuel Tank Cover
-
Fuel Tank Cover
No
Side Cover
-
Side Cover
No
Steering Control
Handlebar
Steering Control
Handlebar
Front Suspension Brand Name
WP
Front Suspension Brand Name
WP XACT
Front Suspension Type
Inverted Fork
Front Suspension Type
Inverted Fork
Front Adjustable Fork Pre-Load
Yes
Front Adjustable Fork Pre-Load
Yes
Front Adjustable Rebound Damping
Yes
Front Adjustable Rebound Damping
Yes
Front Central Suspension Strut
No
Front Central Suspension Strut
No
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)
1.9 / 48
Front Suspension Size (in/mm)
1.3 / 35
Front Travel (in/mm)
11.8 / 300
Front Travel (in/mm)
8.1 / 205
Rear Travel (in/mm)
13.2 / 335
Rear Travel (in/mm)
7.3 / 185
Steering Damper
-
Steering Damper
No
Rear Suspension Brand Name
-
Rear Suspension Brand Name
WP XACT
Wheels
Standard
Wheels
Standard
Tube / Tubeless
Tubed
Tube / Tubeless
Tubed
Tires
Standard
Tires
Standard
Tire Brand
Pirelli®
Tire Brand
Maxxis®
Front Tire Width
80
Front Tire Width
-
Front Tire Aspect Ratio
100
Front Tire Aspect Ratio
-
Front Wheel Diameter
21
Front Wheel Diameter
12
Rear Tire Width
110
Rear Tire Width
-
Rear Tire Aspect Ratio
100
Rear Tire Aspect Ratio
-
Rear Wheel Diameter
18
Rear Wheel Diameter
10
Front Wheel Width (in)
1.6
Front Wheel Width (in)
2.5
Rear Wheel Width (in)
2.15
Rear Wheel Width (in)
2.75
Front Tire (Full Spec)
80/100 R21
Front Tire (Full Spec)
Maxxis® MX-ST 2.50 X 12 42J
Rear Tire (Full Spec)
110/100 R18
Rear Tire (Full Spec)
Maxxis® MX-ST 2.75 X 10 38J
Wheels Composition
-
Wheels Composition
Aluminum
Front Tire Speed Rating
-
Front Tire Speed Rating
J
Rear Tire Speed Rating
-
Rear Tire Speed Rating
J
Brakes
Standard
Brakes
Standard
Brake Brand Name
Brembo®
Brake Brand Name
Formula
Front Brake Type
Disc
Front Brake Type
Hydraulic Disc
Rear Brake Type
Disc
Rear Brake Type
Hydraulic Disc
Front Brake Diameter (in/mm)
10.2 / 260
Front Brake Diameter (in/mm)
6.3 / 160
Rear Brake Diameter (in/mm)
8.7 / 220
Rear Brake Diameter (in/mm)
6.3 / 160
Seat Type
One-Piece
Seat Type
One-Piece
Seat Location
Driver
Seat Location
Driver
Seat Material
Vinyl
Seat Material
Vinyl
Adjustable
No
Adjustable
Yes
Folding
No
Folding
No
Seat Specifications
Standard
Seat Specifications
Standard
Number Of Seats
1
Number Of Seats
1
Seat Height (in/mm)
36.4 / 925
Seat Height (in/mm)
26.2 / 665
Digital Instrumentation
Standard
Digital Instrumentation
Optional
Clock
Standard
Clock
-
Speedometer
Standard
Speedometer
-
Tachometer
Optional
Tachometer
Optional
Trip Odometer
Standard
Trip Odometer
-
Trip Computer
Standard
Trip Computer
-
Lap Timer
Standard
Lap Timer
Optional
Multi-Lingual Instrumentation
Standard
Multi-Lingual Instrumentation
-
Storage Cover
Optional
Storage Cover
Optional
Type
Halogen
Type
-
Headlight Visor
Optional
Headlight Visor
-
Headlight (s)
Standard
Headlight (s)
-
Halogen Headlight (s)
Standard
Halogen Headlight (s)
-
Rearview Mirrors
Optional
Rearview Mirrors
-
Heated Hand Grips
Optional
Heated Hand Grips
-
Paint
Standard
Paint
Standard
Metallic
No
Metallic
No
Decal Kit
Standard
Decal Kit
Standard