2024KTM 50 SX

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The 2024 KTM 50 SX is a lightweight minibike designed for young riders and beginners seeking an accessible entry into off-road motorcycling. Powered by a nimble 49cc two-stroke engine with automatic transmission, it delivers manageable power and easy operation. Known for its responsive handling and reliability, the 50 SX excels as a learning platform for developing fundamental riding skills on various terrains.

Capacity: 49.9 ccm
Engine: Single, two-stroke
Gearbox: 1-speed
Dry weight: 43.5 kg
Seat height: 653 mm
Power: 5.4 HP (4.0 kW)

⇄ Compare with another bike All model years

What’s new for the 2024 KTM 50 SX

vs the 2023

Spec	2023	2024
Engine capacity	49.0 ccm (2.99 cubic inches)	49.9 ccm (3.05 cubic inches)
Dry weight	41.5 kg (91.5 pounds)	43.5 kg (95.9 pounds)
Seat height	665 mm (26.2 inches)	653 mm (25.7 inches)

Other years 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail80%

Cornering60%

City riding5%

Daily riding5%

Touring5%

Two-up0%

Track55%

Best for: It exists purely to teach a child the fundamentals of balance, throttle control, and off-road riding in a safe, low-powered package.
Built for: It behaves like a purpose-built miniature dirt bike, docile and forgiving with an automatic single-speed gearbox that removes clutch and shifting complexity so a child can focus on riding.
Not ideal for: It is not suitable for adults, taller teens, road use, touring, or anyone seeking real speed or highway capability.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

Worked out in your browser - nothing is sent to us

Your height

Inseam (optional)

Units

At 653mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2024 KTM 50 SX, with a cramped knee angle of around 55 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 750 mm or under — Short Kings →

Find bikes that fit your height →

Full specifications

Engine

Capacity: 49.9 ccm
Power: 5.4 HP (4.0 kW)
Engine type: Single, two-stroke
Power/weight ratio: 0.1241 HP/kg (dry)
Bore x stroke: 39.5 x 40.0 mm
Compression: 12.5:1
Cooling system: Liquid
Fuel system: Carburettor
Starting: Kick
Ignition: Seletra 2p D36 EMS
Valves per cylinder: 1
Lubrication system: Mixture oil lubrication

Transmission

Gearbox: 1-speed
Transmission type: Automatic
Final drive: Chain
Clutch: Centrifugal

Dimensions & weight

Wheelbase: 1029 mm
Seat height: 653 mm
Dry weight: 43.5 kg
Fuel capacity: 2.30 litres
Ground clearance: 252 mm

Chassis & suspension

Frame: Central-tube frame with double-cradle
Front suspension: XACT 35 WP Upside-Down fork, Ã˜ 35 mm
Rear suspension: XACT WP PDS mono shock
Front wheel travel: 205 mm
Rear wheel travel: 185 mm
Rake (fork angle): 24.0°
Trail: 90 mm

Brakes & wheels

Front brakes: Single disc
Front brakes diameter: 160 mm
Rear brakes: Single disc
Rear brakes diameter: 160 mm
Front tyre: 60/100-12
Rear tyre: 2.75-10

Other

Color options: White/orange/grey
Comments: Intended for children 4-10 years old.

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	2006	2011	2017	2022	2024	2027
Capacity	49 cc	49 cc	49 cc	49 cc	50 cc	50 cc
Dry weight	39 kg	40 kg	42 kg	42 kg	44 kg	44 kg
Seat height	650 mm	684 mm	684 mm	665 mm	653 mm	653 mm
Fuel capacity	1.8 L	2.3 L	2.3 L	2.3 L	2.3 L	2.3 L