Motocross Bikes
2027KTM 50 SX
13 fields on record
The 2027 KTM 50 SX is a youth motocross bike displacing 49.9cc, weighing 43.5kg without fuel with a 653mm seat height built for young riders progressing through KTM's youth MX ladder. WP suspension provides 165mm front and 190.5mm rear travel. As with KTM's other closed-course competition models, official power/torque figures are not published.
- 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
- Not on record
Know it? Add it →
What’s new for the 2027 KTM 50 SX
vs the 2026| Spec | 2026 | 2027 |
|---|---|---|
| Power | 5.4 HP (4.0 kW) | not listed |
| Gearbox | 1-speed | not listed |
| Front suspension | XACT 35 WP Upside-Down fork, Ø 35 mm | not listed |
| Rear suspension | XACT WP mono shock | not listed |
| Front brakes | Disc brake | not listed |
| Rear brakes | Disc brake | not listed |
| Wheelbase | 1026 mm (40.4 inches) | not listed |
| Compression | 12.5:1 | not listed |
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- Best for
- Youth motocross racing and skills development
- Built for
- Entry-to-intermediate youth motocross machine
- Not ideal for
- Adult riders or road use
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 usReliability & safety
Safety recalls and owner complaintsUS owner complaints
None filed for 2027 · 1 across all yearsNo US owner complaints are on record for the 2027 model; owners of other years of the KTM 50 SX have filed 1.
Source: NHTSA owner complaints (United States). These are unverified reports from owners, not confirmed defects — a handful is normal for a popular model.
Engine
- Capacity
- 49.9 ccm
- Engine type
- Single, two-stroke
- Cooling system
- Liquid
Transmission
- Transmission type
- Automatic
- Final drive
- Chain
Dimensions & weight
- Seat height
- 653 mm
- Dry weight
- 43.5 kg
- Fuel capacity
- 2.30 litres
- Ground clearance
- 233 mm
Chassis & suspension
- Front wheel travel
- 165 mm
- Rear wheel travel
- 190 mm
Other
- Comments
- Youth motocross model. Closed-course competition model - KTM does not publish official hp/torque.
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 | 2027 |
|---|---|---|---|---|---|
| Capacity | 49 cc | 49 cc | 49 cc | 49 cc | 50 cc |
| Dry weight | 39 kg | 40 kg | 42 kg | 42 kg | 44 kg |
| Seat height | 650 mm | 684 mm | 684 mm | 665 mm | 653 mm |
| Fuel capacity | 1.8 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?
The 2027 KTM 50 SX has a Capacity of 49.9 ccm (3.05 cubic inches).
How much does the KTM 50 SX weigh?
The 2027 KTM 50 SX has a Dry weight of 43.5 kg (95.9 pounds).
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