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Harley-Davidson SX 125
2021Super Moto

Harley-Davidson SX 125

$3,730

Key specifications

Engine
125 cc
Power
15 HP
Torque
22 Nm
Fuel type
petrol
Fuel capacity
2.6 L
Transmission
6-speed
Seat height
35 mm
Front brakes
Single disc. Floating calliper. Front wheel only ABS.
Rear brakes
Single disc. Floating calliper

Overview

Introducing the 2021 KTM SX 125, a spirited entry into the super motard category that embodies the essence of performance and agility. Renowned for its racing pedigree, KTM has crafted this motorcycle not only for thrill-seekers but also for those looking to hone their skills on both the track and the street. With a price tag of €3730, the SX 125 is an attractive option for young riders and enthusiasts who crave an exhilarating experience from a lightweight, nimble machine that is both accessible and packed with features. At the heart of the SX 125 is a robust single-cylinder, four-stroke engine boasting a displacement of 124.8 ccm. This mechanical marvel churns out an impressive 15.0 HP at 10,500 RPM and delivers a torque of 22.2 Nm at 8,000 RPM, ensuring a responsive and exhilarating ride. The liquid-cooled engine utilizes a Magneti Marelli M3G electronic fuel injection system for optimal efficiency and performance, while the 6-speed gearbox and multi-plate oil bath clutch allow for seamless gear transitions, catering to both beginners and seasoned riders. Whether navigating tight corners or blasting down straightaways, the SX 125's lightweight frame (weighing only 120 kg) and excellent power-to-weight ratio provide a thrilling and confidence-inspiring ride. The SX 125 also comes equipped with a host of advanced features and technology that enhance the overall riding experience. Its steel perimeter frame offers impressive rigidity and stability, while the front and rear suspension setups—featuring a 40 mm USD fork and hydraulic monoshock absorber—provide exceptional handling and comfort over various terrains. Safety is paramount, and the inclusion of a front wheel-only ABS system ensures that riders can confidently tackle both urban environments and off-road challenges. With a comfortable seat height of 880 mm and a color palette that includes the eye-catching Red Raceway and sleek Silver Speedway, the SX 125 is as visually appealing as it is functional. **

Pros

  • Lightweight and Agile: At just 120 kg, the SX 125 is incredibly nimble, making it easy to maneuver in tight spaces and during aggressive riding.
  • Powerful Engine Performance: The single-cylinder engine delivers a thrilling power band and impressive torque, ideal for both street and off-road riding.
  • Advanced Suspension: The high-quality suspension components provide excellent handling and comfort, enhancing the overall riding experience.

Cons

  • Limited Power for Highway Riding: While excellent for city and off-road use, the 15 HP may limit its capabilities on highways or at higher speeds.
  • Sporty Seat Height: The seat height of 880 mm may be challenging for shorter riders, potentially limiting comfort and control.
  • Minimal Fuel Capacity: With a fuel tank capacity of only 10 liters, longer rides may require more frequent stops for refueling.

Technical details

Source specification data

Make
Aprilia
Model
SX 125
Price
Euro
3730.
P
depends on country, taxes, accessories, etc.
Category
Super motard
Starter
Electric
Instruments
Digital dashboard
Color Options
Red Raceway, Silver Speedway
Power
15.0 HP (10.9 kW)) @ 10500 RPM
Clutch
Multi-plate in oil bath.
Torque
22.2 Nm (2.3 kgf-m or 16.4 ft.lbs) @ 8000 RPM
Ignition
Electronic with CDI capacity discharge
Driveline
Primary
drive:
Gearbox
: 63/19 (3.31).
Final
drive:
Chain
: 17/40 (2.35).
Fuel System
Injection
.
G
ø 32mm
Bore X Stroke
58.0 x 47.0 mm (2.3 x 1.9 inches)
Compression
12.5:1
Displacement
124.8 ccm (7.62 cubic inches)
Cooling System
Liquid
Engine Details
Single cylinder, four-stroke
Emission Details
Euro 4
Lubrication System
Wet sump
Transmission Type Final Drive
Chain
Seat Height
880 mm (34.6 inches) If adjustable, lowest setting.
Fuel Capacity
10.00 litres (2.64 gallons)
Reserve Fuel Capacity
3.00 litres (0.79 gallons)
Weight Incl Oil Gas Etc
120.0 kg (264.6 pounds)
Wheels
Aluminium spoked wheel.
Rear Tyre
150/60-R17
Frame Type
Steel perimeter
Front Tyre
110/70-R17
Rear Brakes
Single disc. Floating calliper
Front Brakes
Single
disc.
Floating
calliper.
Front
wheel only
S
.
Rear Suspension
Steel
swingarm.
Hydraulic
monoshock absorber.
Front Suspension
Ø40 mm USD fork.
Rear Wheel Travel
265 mm (10.4 inches)
Front Wheel Travel
260 mm (10.2 inches)

Available colors

Red RacewaySilver Speedway