Motocross Bikes
2024KTM 50 SX Factory
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The 2024 KTM 50 SX Factory is a high-performance minibike designed for young riders and beginners entering competitive motocross. Powered by a potent 49.8cc two-stroke engine with DOHC technology and an FMF silencer, it delivers sharp throttle response ideal for learning racecraft. Known for its rigid central-tube frame, advanced WP suspension, and professional-grade components, this bike punches above its weight class for serious youth competition.
- Capacity
- 49.9 ccm
- Engine
- Single, two-stroke
- Gearbox
- Not on record
Know it? Add it → - Dry weight
- 43.5 kg
- Seat height
- 653 mm
- Power
- 5.4 HP (4.0 kW)
What’s new for the 2024 KTM 50 SX Factory
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) |
| Rear suspension | XACT WP PDS mono shock | XACT WP mono shock |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for off-road and motocross-style riding on tracks and closed terrain rather than public roads.
- Built for
- A motocross bike from KTM with a 50cc engine; its character is easy-going and economical, with 5 hp on tap.
- Not ideal for
- Not road-legal in most markets and not for commuting or touring.
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 usEngine
- 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
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- Seletra 2p D36 EMS
Transmission
- Transmission type
- Automatic
- Final drive
- Chain
- Clutch
- Centrifugal
Dimensions & weight
- Wheelbase
- 1026 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, Ø 35 mm
- Rear suspension
- XACT WP mono shock
- Front wheel travel
- 205 mm
- Rear wheel travel
- 185 mm
- Rake (fork angle)
- 24.0°
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 160 mm
- Rear brakes
- Single disc
Other
- Color options
- White/orange/black/blue
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 | 2021 | 2022 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|
| Capacity | 50 cc | 49 cc | 50 cc | 50 cc | 50 cc |
| Dry weight | 42 kg | 42 kg | 44 kg | 44 kg | 44 kg |
| Seat height | 665 mm | 665 mm | 653 mm | 653 mm | 653 mm |
| Fuel capacity | 2.3 L | 2.3 L | 2.3 L | 2.3 L | 2.3 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the KTM 50 SX Factory?
The 2024 KTM 50 SX Factory has a Capacity of 49.9 ccm (3.05 cubic inches).
What engine power does the KTM 50 SX Factory have?
The 2024 KTM 50 SX Factory has a Power of 5.4 HP (4.0 kW).
How much does the KTM 50 SX Factory weigh?
The 2024 KTM 50 SX Factory has a Dry weight of 43.5 kg (95.9 pounds).
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