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Model Type
Sport
Model Type
-
MSRP
$0
MSRP
-
Warranty
24
Warranty
-
Insurance
Insurance
-
Finance
Finance
-
Generic Type (Primary)
Sport
Generic Type (Primary)
Off-Road
Manufacturer Country
Austria
Manufacturer Country
Austria
Introduction Year
2015
Introduction Year
-
Manufacturer Recommend Minimum Age
16
Manufacturer Recommend Minimum Age
16
Parent Company
KTM
Parent Company
KTM
Display Name
RC 390
Display Name
SX 125
Representative Image
No
Representative Image
-
Year
2018
Year
2023
Make
KTM
Make
KTM
Photo Gallery
-
Photo Gallery
Standard
Engine Type
Single-Cylinder
Engine Type
Single-Cylinder
Cylinders
1
Cylinders
1
Engine Stroke
4-Stroke
Engine Stroke
2-Stroke
Horsepower (bhp/kW)
44 / 32
Horsepower (bhp/kW)
-
Cooling
Liquid
Cooling
Liquid
Valves
4
Valves
-
Valves Per Cylinder
4
Valves Per Cylinder
-
Valve Configuration
DOHC
Valve Configuration
Reed Valve
Bore (mm/in)
89 / 3.5
Bore (mm/in)
54 / 2.13
Stroke (mm/in)
60 / 2.36
Stroke (mm/in)
-
Displacement (cc/ci)
373.2 / 22.8
Displacement (cc/ci)
124.8 / 7.6
Compression Ratio
12.6:1
Compression Ratio
-
Starter
Electric
Starter
Electric
Fuel Requirements
Premium
Fuel Requirements
Premium
Fuel Type
Gas
Fuel Type
Gas / Oil Premix
Turbocharged
No
Turbocharged
-
Supercharged
No
Supercharged
-
Carburetion Brand
Bosch
Carburetion Brand
Keihin
Fuel Injector
Yes
Fuel Injector
Yes
Fuel Injector Size (mm)
46
Fuel Injector Size (mm)
-
Carburetor
No
Carburetor
No
Carburetion Type
Fuel Injected
Carburetion Type
Fuel Injected
Engine
-
Engine
Standard
Carburetion
-
Carburetion
Standard
Stroke (in/mm)
-
Stroke (in/mm)
2.15 / 54.5
Transmission Type
Manual
Transmission Type
Manual
Number Of Speeds
6
Number Of Speeds
6
Overdrive
Yes
Overdrive
No
Primary Drive (Rear Wheel)
Chain
Primary Drive (Rear Wheel)
Chain
Gear Ratio (1/2/3/4/5/6)
2.67 / 1.86 / 1.42 / 1.14 / 0.96 / 0.84
Gear Ratio (1/2/3/4/5/6)
-
Reverse
Yes
Reverse
No
Final Drive Ratio
2.67
Final Drive Ratio
3.85
Transmission
-
Transmission
Standard
Wheels Composition
Aluminum
Wheels Composition
-
Tube / Tubeless
Tubeless
Tube / Tubeless
-
Chromed
No
Chromed
-
Tire Brand
Metzeler
Tire Brand
-
Front Tire Width
110
Front Tire Width
-
Front Tire Aspect Ratio
70
Front Tire Aspect Ratio
-
Front Tire Speed Rating
54W
Front Tire Speed Rating
-
Front Wheel Diameter
17
Front Wheel Diameter
-
Rear Tire Width
150
Rear Tire Width
-
Rear Tire Aspect Ratio
60
Rear Tire Aspect Ratio
-
Rear Tire Speed Rating
66W
Rear Tire Speed Rating
-
Rear Wheel Diameter
17
Rear Wheel Diameter
-
Front Tire (Full Spec)
Metzeler 110/70 ZR17 54W
Front Tire (Full Spec)
-
Rear Tire (Full Spec)
Metzeler 150/60 ZR17 66W
Rear Tire (Full Spec)
-
Brake Brand Name
Brembo(R)
Brake Brand Name
Brembo®
Front Brake Type
Disc
Front Brake Type
Hydraulic Disc
Front Brake Diameter (in/mm)
12.6 / 320
Front Brake Diameter (in/mm)
10.2 / 260
Rear Brake Type
Disc
Rear Brake Type
Hydraulic Disc
Rear Brake Diameter (in/mm)
9.1 / 230
Rear Brake Diameter (in/mm)
8.7 / 220
Anti-Lock Brakes
Standard
Anti-Lock Brakes
-
Linked Brake System Front to Rear
Standard
Linked Brake System Front to Rear
-
Brakes
-
Brakes
Standard
Front Suspension Type
Inverted Fork
Front Suspension Type
Inverted Fork
Front Suspension Size (in/mm)
1.7 / 43
Front Suspension Size (in/mm)
1.9 / 48
Front Travel (in/mm)
4.9 / 125
Front Travel (in/mm)
12.2 / 310
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
WP
Front Suspension Brand Name
WP XACT
Rear Suspension Type
Twin Sided Swing Arm
Rear Suspension Type
Twin Sided Swing Arm
Rear Travel (in/mm)
5.9 / 150
Rear Travel (in/mm)
11.8 / 300
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 Brand Name
WP
Rear Suspension Brand Name
WP XACT
Rear Suspension Material
Aluminum
Rear Suspension Material
Aluminum
Air Adjustable
No
Air Adjustable
No
Steering Control
Handlebar
Steering Control
Handlebar
Wheelbase (in/mm)
52.8 / 1340
Wheelbase (in/mm)
-
Ground Clearance (in/mm)
7 / 178.5
Ground Clearance (in/mm)
-
Dry Weight (lbs/kg)
324.1 / 149
Dry Weight (lbs/kg)
-
Fuel Capacity (gal/l)
2.6 / 10
Fuel Capacity (gal/l)
-
Fuel Capacity Reserve (gal/l)
0.4 / 1.5
Fuel Capacity Reserve (gal/l)
-
Engine Displacement to Weight (cc)
1.15
Engine Displacement to Weight (cc)
-
Seat Type
Two-Piece
Seat Type
One-Piece
Adjustable
No
Adjustable
Yes
Seat Material
Vinyl
Seat Material
Vinyl
Seat Location
Driver and Passenger
Seat Location
Driver
Seat Height (in/mm)
32.3 / 820
Seat Height (in/mm)
37.7 / 958
Number Of Seats
2
Number Of Seats
1
Backrest Logo Plate
No
Backrest Logo Plate
-
Folding
-
Folding
No
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 and Passenger
Foot Peg Location
Driver
Chain Guard
Yes
Chain Guard
-
Drive Shaft Guard
No
Drive Shaft Guard
No
Fork Guards
Yes
Fork Guards
Yes
Saddle Bag Guard
No
Saddle Bag Guard
No
Belt Guard
No
Belt Guard
No
Hand Guards
No
Hand Guards
-
Brush Guard
No
Brush Guard
No
Heel Guards
No
Heel Guards
-
Exhaust Guard
Yes
Exhaust Guard
Yes
Light Guard
No
Light Guard
No
Fuel Tank Cover
Yes
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
Lower Fairing
Standard
Lower Fairing
-
Spoiler
Standard
Spoiler
Optional
Handlebars
Standard
Handlebars
Standard
Upper Fairing
Standard
Upper Fairing
-
License Plate
Standard
License Plate
-
Construction
-
Construction
Standard
Foot Pegs
-
Foot Pegs
Standard
Handlebar Pads
-
Handlebar Pads
Standard
Exterior Guards
-
Exterior Guards
Standard
Chassis Protectors
-
Chassis Protectors
No
Engine Case Guard
-
Engine Case Guard
No
Exterior Covers
-
Exterior Covers
Standard
Radiator Cover
-
Radiator Cover
Yes
Side Cover
-
Side Cover
No
Stand
-
Stand
Standard
Skid Plate
-
Skid Plate
Optional
Digital Instrumentation
Standard
Digital Instrumentation
Optional
Clock
Standard
Clock
-
Tachometer
Standard
Tachometer
Optional
Trip Odometer
Standard
Trip Odometer
-
Trip Computer
Standard
Trip Computer
-
Shift Light
Standard
Shift Light
-
Speedometer
Standard
Speedometer
-
Temperature Warning Type
Gauge
Temperature Warning Type
-
Fuel Level Warning Type
Gauge
Fuel Level Warning Type
-
Service Reminder
Standard
Service Reminder
-
Lap Timer
-
Lap Timer
Optional
Warranty (Months/Condition)
24 / Limited
Warranty (Months/Condition)
1 / Limited
Basic Warranty (Miles/Kilometers)
24000 / 38624
Basic Warranty (Miles/Kilometers)
-
Battery Warranty (Months)
0
Battery Warranty (Months)
-
Price
-
Price
Standard
MSRP
-
MSRP
$7,949
Destination Charge
-
Destination Charge
535
Tool Bag Mount
Standard
Tool Bag Mount
-
Windshield Mounts
Standard
Windshield Mounts
-
Metallic
No
Metallic
-
Decal Kit
Standard
Decal Kit
-
Folding
Yes
Folding
-
Windshield Lowers
No
Windshield Lowers
-
Height Adjustable
No
Height Adjustable
-
Tinted
Yes
Tinted
-
Height
Low
Height
-
Underseat Storage
Standard
Underseat Storage
-
Storage Cover
-
Storage Cover
Optional
Headlight Mounts
Standard
Headlight Mounts
-
Halogen Headlight (s)
Standard
Halogen Headlight (s)
-
Headlight (s)
Standard
Headlight (s)
-
Light Type
Halogen
Light Type
-
Engine Immobilizer
Standard
Engine Immobilizer
-
Adjustable Levers
Standard
Adjustable Levers
-
Handlebar Lock
Standard
Handlebar Lock
-
Adjustable Handlebars
-
Adjustable Handlebars
Standard
Dimensions
-
Dimensions
Standard
Weight
-
Weight
Standard
Capacities
-
Capacities
Standard
Performance
-
Performance
Standard
Wheelbase (in/mm)
-
Wheelbase (in/mm)
58.5 / 1485
Ground Clearance (in/mm)
-
Ground Clearance (in/mm)
14.1 / 359
Dry Weight (lbs/kg)
-
Dry Weight (lbs/kg)
203.7 / 92.4
Fuel Capacity (gal/l)
-
Fuel Capacity (gal/l)
1.9 / 7.2
Engine Displacement to Weight (cc)
-
Engine Displacement to Weight (cc)
0.61
Wheels
-
Wheels
Standard
Wheels Composition
-
Wheels Composition
Aluminum
Tube / Tubeless
-
Tube / Tubeless
Tubed
Tires
-
Tires
Standard
Tire Brand
-
Tire Brand
Dunlop®
Front Tire Width
-
Front Tire Width
80
Front Tire Aspect Ratio
-
Front Tire Aspect Ratio
100
Front Tire Speed Rating
-
Front Tire Speed Rating
M
Front Wheel Diameter
-
Front Wheel Diameter
21
Rear Tire Width
-
Rear Tire Width
100
Rear Tire Aspect Ratio
-
Rear Tire Aspect Ratio
90
Rear Tire Speed Rating
-
Rear Tire Speed Rating
M
Rear Wheel Diameter
-
Rear Wheel Diameter
19
Front Wheel Width (in)
-
Front Wheel Width (in)
1.6
Rear Wheel Width (in)
-
Rear Wheel Width (in)
2.15
Front Tire (Full Spec)
-
Front Tire (Full Spec)
Dunlop® GEOMAX MX3S 80/100 R21 51M
Rear Tire (Full Spec)
-
Rear Tire (Full Spec)
Dunlop® GEOMAX MX3S 100/90 R19 57M
Paint
-
Paint
Standard
Metallic
-
Metallic
No
Decal Kit
-
Decal Kit
Standard
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