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KTM 125 SX: A Powerful and Stylish Motocross in 125cc Segment

KTM-125-SX-img

Key Highlights

  • Displacement
    125 cc
  • Mileage
    47.04 MPG
  • Top Speed
    85 MPH
  • Curb Weight
    203.70 lb
  • Fuel Capacity (approx)
    1.90 gallon
  • Seat Height
    37.71 inch
Base MSRP: $7,949*

*Prices & Specifications subject to change without notice. MSRP excludes tax, license, registration, destination charge and dealer installed options and accessories. Dealer prices may vary.

Latest on KTM 125 SX

  • KTM is all set for the 2023 version of KTM 125 SX.
  • The updated model will be available at around $7,949
  • Modified suspension installed in KTM 125 SX 2023. The 2023 KTM SX features an entirely new and improved rider triangle
  • The fuel system has been upgraded with Vitesco Technologies EMS.

Introduction of KTM 125 SX

KTM, known for its stylish sports vehicles, has reintroduced the KTM 125 SX with minor changes that have improved its overall performance.

KTM, also in the spotlight, has proven to define the concept of a sports bike and a powerfully immersive experience over time.

Being the leader of 2-stroke motocross innovation and slaying the rest of the 125 cc class, the 2023 KTM 125 SX boasts accolades with its rider-friendly performance. So, all you need to do is press the starter and begin the adventure.

With unwavering stability, 125 SX provides the best cornering ability when you are at the best of the ride.

What’s New in the Latest Model of the KTM 125 SX?

  • The new KTM 125 SX has an electric and manual start, which was missing in previous models.
  • The seat’s height has been adjusted so it can be raised by another 108mm.
  • Vitesco Technologies EMS has also replaced the fuel system, providing better performance.
  • The ground clearance has been reduced from 375mm to 359mm from the previous year.
  • The bike’s overall weight without fuel is 203.7 lbs, slightly more than before.
  • The new frame design helps in better suspension.

Highlights of KTM 125 SX

Design of KTM 125 SX

KTM is known for its sporty naked design, with an orange shade on each motorcycle. Similarly, the KTM 125 SX has a new naked design that gives the impression of riding a powerful dirt bike.

The design is aerodynamic and narrow, which helps the bike maintain balance while racing at high speeds and provides better stability when riding in muddy regions.

It also has polycarbonate work that removes excess or unnecessary mud and dirt from riding off-road. The rider can adjust their legs with better ergonomics, and plastic mudguards can quickly eliminate dirt and dust.

It has also been designed with CNC-milled triple clamps made of high-grade aluminum to ensure proper alignment of the required parts.

The motorcycle’s overall appearance is stunning, and it includes in-built frame protectors that are lightweight and fitted using industry-specific machinery. The robotic feature in the KTM industry aids in producing excellent quality work without even the slightest mistake.

The new frame design has improved overall control and stability by examining longitudinal rigidity and relocating the rotating mass closer to the center of gravity.

Color and variant of KTM 125 SX

The KTM 125 SX is currently available in only one color:

  • Orange

The KTM 125 SX is currently available in one variant:

  • KTM 125 SX

Engine of KTM 125 SX

The KTM 125 SX engine has a displacement of 125 ccs, a single-type cylinder with two strokes, and an electronic fuel injection type using the Keihin EFI and reed valve case designs, which ensures greater power when riding off-road or at higher altitudes.

The engine also has a 6-speed gearbox, chain type transmission, wet multi-disc DS clutch, X-Ring 58.0 x 14 chain, liquid cooling system, Wet Sump lubrication system, and bore and stroke measurements of 54.0 x 54.5 mm.

It also has a mileage range of 20-25 km/l and a power range of – 37.5 HP. Furthermore, this powerful engine can reach a top speed of 0-60 mph in approximately 9-10 seconds.

Features of KTM 125 SX

The 2023 KTM 125 SX has received some recent upgrades and features that have significantly improved its performance and durability over previous models.

Selectable maps are the first feature the rider will be happy to know about. Here, you can easily switch between 2 engine maps to get a smoother bike experience.

The electric start feature has also helped to eliminate the kickstart method, making it possible to start the motorcycle in less than a second and reach a speed of 0-60 in less than 9-10 seconds. This handy feature lets you win any race or start the vehicle with minimal physical effort.

It also has better traction, which results in fewer rebounds and more stability.

Furthermore, KTM 125 SX gets a ground clearance is 359 mm, allowing you to drive the motorcycle with constant momentum without fear of being damaged by large objects on the ground.

Transmission, Suspension, and Brakes of KTM 125 SX

The KTM 125 SX transmission is clocked at 6 – speeds, which means it has six gears, allowing the rider to drive the bike more smoothly and efficiently without discomfort or difficulty in performance.

The KTM 125 SX’s rear suspension is WP XACT Monoshock with linkage has a suspension travel of 300mm, while the front suspension is 48mm WP XACT with 310 mm suspension travel.

Now, for the brakes, the bike has 260mm disc brakes in the front and 220mm disc brakes in the rear, allowing the rider to slow down and stop the motorcycle as needed.

Pros and Cons of KTM 125 SX

Pros

  • Unique Design
  • Powerful Engine
  • Smooth Suspension
  • Electric Start
  • Better Ergonomics
  • Improved Traction

Cons

  • Quite Expensive
  • Limited Colours

Specifications & Features

Power & Performance

  • Displacement
    125 cc
  • Engine Type
    1-cylinder, 2-stroke engine
  • Bore
    54 mm
  • Stroke
    54.5 mm
  • Compression Ratio
  • Ignition
    Digital
  • Transmission
    6-speed
  • Chain
    520, Non-sealed
  • Clutch
    Wet multi-disc DS clutch, Brembo hydraulics
  • EMS
    Vitesco Technologies EMS
  • Fuel Capacity (approx)
    1.90 gallon
  • Mileage
    47.04 MPG
  • Top Speed
    85 MPH
  • Fuel Delivery
  • Horsepower
    37.5 HP
  • Torque
    19.2Nm@8,000rpm

Brakes, Wheels & Suspension

  • Rear Tire Size
    100/90-19
  • Rear Suspension
    WP XACT Monoshock with linkage
  • Front Brake
    10.23 inch Disc brake
  • Rear Brake
    8.66 inch Disc brake
  • Front Tire Size
    80/100-21
  • Front Suspension
    WP XACT-USD, Ø 48 mm
  • Frame Design
  • Frame Type
    Central double-cradle-type 25CrMo4 steel
  • Suspension Travel (Front)
    12.20 inch Travel
  • Suspension Travel (Rear)
    11.81 inch Travel

Dimensions & Chassis

  • Wheelbase
    58.5 inches
  • Seat Height
    37.71 inch
  • Overall Width
  • Overall Length
  • Overall Height
  • Ground Clearance
    14.33 inch
  • Curb Weight
    203.70 lb
  • Steering Head Angle
    63.9 °
  • Rake
  • Trail
  • Frame Type
    Central double-cradle-type 25CrMo4 steel

Others

  • Warranty
  • Color Choices
    Orange
  • Starter
    Electric starter

Gallery

  • KTM 125 SX: A Powerful and Stylish Motocross in 125cc Segment Image 1
  • KTM 125 SX: A Powerful and Stylish Motocross in 125cc Segment Image 2
  • KTM 125 SX: A Powerful and Stylish Motocross in 125cc Segment Image 3
  • KTM 125 SX: A Powerful and Stylish Motocross in 125cc Segment Image 4
  • KTM 125 SX: A Powerful and Stylish Motocross in 125cc Segment Image 5
  • KTM 125 SX: A Powerful and Stylish Motocross in 125cc Segment Image 6

Top 3 Competitors of KTM 125 SX

KTM 125 SX vs Husqvarna TC 125

Price

The KTM 125 SX is priced at $7,949.00, while the Husqvarna TC 125 is priced at $8,049.

Engine

The KTM 125 SX has a powerful 2-stroke 125 cc engine with an overall weight of only 39.3 lbs.

The Husqvarna TC 125 has a 2-stroke 125 cc engine with an overall weight of 39.4 lbs.

Speed

The top speed of the KTM 125 SX is 85 mph, while that of the Husqvarna TC 125 is 70 mph.

Fuel capacity

The fuel capacity of the KTM 125 SX and the Husqvarna TC 125 is the same,1.9 gallons.

KTM 125 SX vs Yamaha YZ125

Price

The KTM 125 SX costs $7,949.00, while the Yamaha YZ125 costs $6,999.

Engine

The KTM 125 SX is powered by a powerful 2-stroke 125 cc engine that weighs just 39.3 lbs.

The Yamaha YZ125 has a 4-stroke 125cc engine.

Mileage

The average mileage of the KTM 125 SX is 85 mph approx, while the average mileage of the Yamaha YZ125 is 65.8 mph approx.

Fuel capacity

The KTM 125 SX has a fuel capacity of 1.9 gallons, while the Yamaha YZ125 has a capacity of 1.8 gallons.

KTM 125 SX vs GasGas MC 125

Price

The price of KTM 125 SX is $7,949.00, and the cost of GasGas MC 125 is $7,349.

Engine

The KTM 125 SX has a powerful 2-stroke 125 cc engine with an overall weight of only 39.3 lbs.

The GasGas MC 125 has a 125cc engine with two stokes. Furthermore, the engine’s total weight is 37.9 lbs.

Speed

Regarding speed, the KTM 125 SX can reach up to 85 mph, while the GasGas MC 125 can only reach 30 mph.

Capacity for fuel

The KTM 125 SX has a fuel capacity of 1.9 gallons, while the Gas Gas Mac 125 has a fuel capacity of 1.98 gallons.

Compare of KTM 125 SX

Image
KTM-125-SX-img
Husqvarna-TC-125-img
Yamaha YZ125 featured img
Model KTM 125 SX Husqvarna TC 125 Yamaha YZ125
Price $7,949* $8,049* $6,999*
Displacement 125 cc 124.8 cc 125cc
Stroke 54.5 mm 54.5 mm 54.5mm
Bore 54 mm 54 mm 54.0mm
Top Speed 85 MPH 70 MPH 60 mph
Fuel Capacity (approx) 1.90 gallon 1.90 gallon 1.8 gal
Rake 26°
Trail 4.3 in
Curb Weight 203.70 lb 203 lb 209 lb
Front Tyre Size 80/100-21 Dunlop® 80/100 R21 80/100-21
Rear Tyre Size 100/90-19 Dunlop® 100/90 R19 100/90-19
Mileage 47.04 MPG 16-17 Mpl
Front Brake 10.23 inch Disc brake 260 mm Disc brake Hydraulic disc, 270mm
Rear Brake 8.66 inch Disc brake 220 mm Disc brake Hydraulic disc, 240mm
Engine Type 1-cylinder, 2-stroke engine Single cylinder two stroke liquid-cooled 2-stroke
    View more View more
View Full Specification

Conclusion

KTM has always been a strong contender when presenting its powerful and stylish sports bike, and with the upgrades done in previous models, it has received a lot of praise from riders worldwide.

The KTM 125 SX is a stylish and funky dirt bike with a powerful engine and some recent upgrades that have made it more impressive in looks and performance, where the rider can enjoy seat elevation, electric start, engine maps, and much more.

With millions of satisfied customers worldwide, KTM is confident in providing a quality experience and services. The KTM 125 SX costs $7,949, making it an expensive but worthwhile dirt bike that every rider should try.

FAQs

Which is better, KTM 125 SX or Yamaha YZ125?

The KTM 125 SX is $7,949.00, while the Yamaha YZ125 is $6,999. So, the KTM 125 SX is quite expensive, but in terms of horsepower, the KTM 125 SX engine produces 37.5 HP, while the Yamaha YZ125 engine produces 33.53HP.

What is the fuel capacity of the KTM 125 SX?

The KTM 125 SX has a fuel capacity of 1.9 gallons.

What's the pickup and top speed of the KTM 125 SX?

The KTM 125 SX has a top speed of 85 mph and can accelerate from 0 to 60 mph in 9-10 seconds.

What is the current price of the KTM 125 SX?

The KTM 125 SX is currently on the market for $7,949.00.

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