KTM 125 SX - 2022 Specifications and Reviews

The 2022 KTM 125 SX is a lightweight two-stroke enduro bike designed for young riders and beginners entering competitive off-road racing. Its 124.8cc single-cylinder engine delivers 15 horsepower with sharp power delivery, making it ideal for learning fundamental dirt bike skills. Known for its nimble handling and aggressive styling, the 125 SX excels in technical terrain and remains a popular choice in junior motocross classes.

Not Rated stars Average rating: Not Rated from 0 votes
.

General information

CategoryEnduro / offroad
Year2022
ModelKTM 125 SX

Engine and Transmission Specifications

Driveline5/8  x  1/4 (520) O Ring. Primary drive: 22:72.
ClutchMulti-plate clutch, Brembo hydraulics
Transmission typeChain   (final drive)
Gearbox6-speed
Cooling systemLiquid
Lubrication systemWet sump
IgnitionKokusan EMS
Fuel systemInjection
Bore x Stroke54.0 x 54.5 mm (2.1 x 2.1 inches)
Power15.0 HP (10.9 kW)
Engine typeSingle cylinder, two-stroke
Capacity:124.8 ccm (7.62 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakesSingle disc
Diameter260 mm (10.2 inches)
Front brakesSingle disc
Rear tire150-17
Front tire110-17
Rear wheel travel300 mm (11.8 inches)
Rear SuspensionWP XACT Monoshock with linkage
Front wheel travel310 mm (12.2 inches)
Front SuspensionWP XACT-USD, Ø 48 mm
Rake (fork angle)26.1°
Frame typeCentral double-cradle-type 25CrMo4 steel

Physical measures and capacities

Fuel capacity7.50 litres (1.98 US gallons)
Ground clearance375 mm (14.8 inches)
Seat height950 mm (37.4 inches) If adjustable, lowest setting.
Power/weight ratio0.1714 HP/kg
Dry weight87.5 kg (192.9 pounds)
 
 

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
StarterKick
Color optionsWhite/orange/blue

Performance Profile & Rider Fit

Best For

Track95%
City10%
Cornering90%
Daily Riding10%
Touring8%
Passenger5%

Rider Profile

Best ForThis is a full-on motocross competition bike best suited to intermediate through expert off-road riders, not beginners or casual road riders.
PurposeBuilt purely for closed-course motocross racing, it excels at jumps, berms, and rapid direction changes on dirt tracks rather than any street use.
Rider FitThe tall 958 mm seat height, aggressive ergonomics, and demanding 2-stroke power delivery require good rider fitness, strength, and prior dirt bike experience.
CharacterLight, explosive, and razor-sharp in handling, it rewards aggressive riding with a peaky two-stroke power band and minimal weight to manage.
Not Ideal ForIt is not suitable for commuting, highway travel, passengers, or riders seeking comfort, storage, or a forgiving low-end power delivery.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2022 KTM 125 SX Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 950mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2022 KTM 125 SX, with a cramped knee angle of around 85 degrees and an upright riding position.

Data quality: estimated (wheelbase estimated from this category's typical bike, not this model's own spec). Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

Find bikes that fit your height →

Rider Reviews

Total comments: 1
64x64

MotorcycleDB Review

The 2022 KTM 125 SX is an incredibly agile and powerful motocross bike that is sure to impress riders of all skill levels. With its lightweight frame and powerful 125cc engine, this bike is perfect for tackling tight corners and fast straightaways. The advanced suspension system provides excellent handling and control, making it a top choice for competitive off-road racing. Additionally, the KTM 125 SX features top-of-the-line components and technology, ensuring a smooth and thrilling ride every time. In conclusion, the 2022 KTM 125 SX is a fantastic choice for anyone looking for a high-performance motocross bike. Its lightweight design, powerful engine, and advanced suspension make it a top contender in the motocross world. Whether you're a seasoned rider or just starting out, the KTM 125 SX is sure to deliver an adrenaline-pumping experience that will leave you wanting more.
Reply

Add a Comment


Please Login or Register if you would like to leave a comment.