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Model Type
Youth
Model Type
-
MSRP
$3,699
MSRP
-
Warranty
1
Warranty
-
Insurance
Insurance
-
Finance
Finance
-
Generic Type (Primary)
Youth
Generic Type (Primary)
Track
Manufacturer Country
Austria
Manufacturer Country
Austria
Manufacturer Recommend Minimum Age
6
Manufacturer Recommend Minimum Age
-
Parent Company
KTM
Parent Company
KTM
Display Name
SX 50
Display Name
SMR 450
Year
2011
Year
2022
Make
KTM
Make
KTM
Introduction Year
-
Introduction Year
2004
Photo Gallery
-
Photo Gallery
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
SOHC
Bore (mm/in)
39.5 / 1.55
Bore (mm/in)
95 / 3.74
Stroke (mm/in)
40 / 1.57
Stroke (mm/in)
-
Displacement (cc/ci)
49 / 3
Displacement (cc/ci)
449.9 / 27.4
Starter
Kick
Starter
Electric
Fuel Requirements
Premium
Fuel Requirements
Premium
Fuel Type
Gas / Oil Premix
Fuel Type
Gas
Carburetion Brand
Dell'Orto
Carburetion Brand
Keihin
Fuel Injector
No
Fuel Injector
Yes
Carburetor
Yes
Carburetor
No
Number Of Carburetors
1
Number Of Carburetors
-
Carburetor Size (mm)
19
Carburetor Size (mm)
-
Carburetion Type
Carburetor
Carburetion Type
Fuel Injected
Parental Controls
Standard
Parental Controls
-
Engine
-
Engine
Standard
Valves
-
Valves
4
Valves Per Cylinder
-
Valves Per Cylinder
4
Compression Ratio
-
Compression Ratio
12.8:1
Carburetion
-
Carburetion
Standard
Stroke (in/mm)
-
Stroke (in/mm)
2.5 / 63.4
Fuel Injector Size (mm)
-
Fuel Injector Size (mm)
44
Transmission Type
Automatic
Transmission Type
Manual
Number Of Speeds
1
Number Of Speeds
5
Primary Drive (Rear Wheel)
Chain
Primary Drive (Rear Wheel)
Chain
Reverse
No
Reverse
No
Final Drive Ratio
3.64
Final Drive Ratio
-
Transmission
-
Transmission
Standard
Transmission Brand
-
Transmission Brand
Pankl
Wheels Composition
Aluminum
Wheels Composition
-
Tube / Tubeless
Tubed
Tube / Tubeless
-
Front Wheel Width (in)
1.5
Front Wheel Width (in)
-
Rear Wheel Width (in)
1.6
Rear Wheel Width (in)
-
Front Tire Width
60
Front Tire Width
-
Front Tire Aspect Ratio
100
Front Tire Aspect Ratio
-
Front Wheel Diameter
12
Front Wheel Diameter
-
Rear Wheel Diameter
10
Rear Wheel Diameter
-
Front Tire (Full Spec)
60/100 R12
Front Tire (Full Spec)
-
Rear Tire (Full Spec)
2.75 X 10
Rear Tire (Full Spec)
-
Front Brake Type
Hydraulic Disc
Front Brake Type
Hydraulic Disc
Front Brake Diameter (in/mm)
6.3 / 160
Front Brake Diameter (in/mm)
12.2 / 310
Rear Brake Type
Hydraulic Disc
Rear Brake Type
Hydraulic Disc
Rear Brake Diameter (in/mm)
5.5 / 140
Rear Brake Diameter (in/mm)
8.7 / 220
Brakes
-
Brakes
Standard
Brake Brand Name
-
Brake Brand Name
Brembo®
Front Suspension Type
Telescopic Fork
Front Suspension Type
Inverted Fork
Front Suspension Size (in/mm)
1.3 / 32
Front Suspension Size (in/mm)
1.9 / 48
Front Travel (in/mm)
7.3 / 185
Front Travel (in/mm)
-
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
Front Suspension Brand Name
Marzocchi
Front Suspension Brand Name
WP XACT
Steering Damper
No
Steering Damper
-
Rear Suspension Type
Twin Sided Swing Arm
Rear Suspension Type
Twin Sided Swing Arm
Rear Travel (in/mm)
7.3 / 185
Rear Travel (in/mm)
-
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
Rear Suspension Material
Aluminum
Rear Suspension Material
Aluminum
Air Adjustable
No
Air Adjustable
No
Rear Suspension Brand Name
-
Rear Suspension Brand Name
WP XACT
Steering Control
Handlebar
Steering Control
Handlebar
Wheelbase (in/mm)
40.6 / 1032
Wheelbase (in/mm)
-
Ground Clearance (in/mm)
9.9 / 252
Ground Clearance (in/mm)
-
Dry Weight (lbs/kg)
87.7 / 39.8
Dry Weight (lbs/kg)
-
Fuel Capacity (gal/l)
0.6 / 2.3
Fuel Capacity (gal/l)
-
Engine Displacement to Weight (cc)
0.56
Engine Displacement to Weight (cc)
-
Seat Type
One-Piece
Seat Type
One-Piece
Adjustable
Yes
Adjustable
No
Seat Material
Vinyl
Seat Material
Vinyl
Seat Location
Driver
Seat Location
Driver
Folding
No
Folding
No
Seat Height (in/mm)
26.9 / 684
Seat Height (in/mm)
-
Number Of Seats
1
Number Of Seats
1
Seat Specifications
-
Seat Specifications
Standard
Frame
Steel
Frame
Chromium Molybdenum
Body Material
Plastic
Body Material
Plastic
Hand Grips
Standard
Hand Grips
Standard
Foot Peg Location
Driver
Foot Peg Location
Driver
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
-
Fork Guards
No
Fork Guards
Yes
Saddle Bag Guard
No
Saddle Bag Guard
No
Belt Guard
No
Belt Guard
No
Hand Guards
No
Hand Guards
Yes
Brush Guard
No
Brush Guard
No
Exhaust Guard
Yes
Exhaust Guard
Yes
Light Guard
No
Light Guard
No
Side Cover
No
Side Cover
No
Fuel Tank Cover
No
Fuel Tank Cover
No
Front Fender
Standard
Front Fender
Standard
Rear Fender
Standard
Rear Fender
Standard
Top Crown
Standard
Top Crown
-
Stand Type
Kick
Stand Type
Kick
Handlebars
Standard
Handlebars
Standard
Handlebar Pads
Standard
Handlebar Pads
-
Construction
-
Construction
Standard
Foot Pegs
-
Foot Pegs
Standard
Adjustable
-
Adjustable
No
Exterior Guards
-
Exterior Guards
Standard
Exterior Covers
-
Exterior Covers
Standard
Stand
-
Stand
Standard
Warranty (Condition)
Limited
Warranty (Condition)
-
Destination Charge
200
Destination Charge
485
Battery Warranty (Months)
0
Battery Warranty (Months)
-
Price
-
Price
Standard
MSRP
-
MSRP
$11,999
Warranty (Months/Condition)
-
Warranty (Months/Condition)
1 / Limited
Metallic
No
Metallic
-
Decal Kit
Standard
Decal Kit
-
Dimensions
-
Dimensions
Standard
Weight
-
Weight
Standard
Capacities
-
Capacities
Standard
Performance
-
Performance
Standard
Fuel Capacity (gal/l)
-
Fuel Capacity (gal/l)
1.8 / 7
Wheels
-
Wheels
Standard
Wheels Composition
-
Wheels Composition
Aluminum
Chromed
-
Chromed
No
Tube / Tubeless
-
Tube / Tubeless
Tubed
Tires
-
Tires
Standard
Tire Brand
-
Tire Brand
Bridgestone®
Front Tire Width
-
Front Tire Width
125
Front Wheel Diameter
-
Front Wheel Diameter
16.5
Rear Tire Width
-
Rear Tire Width
165
Rear Wheel Diameter
-
Rear Wheel Diameter
17
Front Tire (Full Spec)
-
Front Tire (Full Spec)
Bridgestone® 125/600 R16.5
Rear Tire (Full Spec)
-
Rear Tire (Full Spec)
Bridgestone® 165/630 R17
Adjustable Handlebars
-
Adjustable Handlebars
Standard
Paint
-
Paint
Standard
Metallic
-
Metallic
No
Decal Kit
-
Decal Kit
Standard
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