Motocross Bikes
2019KTM 150 SX
33 fields on record
The 2019 KTM 150 SX is a lightweight two-stroke dirt bike engineered for young and intermediate motocross riders seeking aggressive performance. Known for its responsive handling and compact geometry, this machine excels in tight technical terrain with its 87.2 kg weight and precision WP suspension. The 144cc platform strikes an ideal balance between power delivery and manageability for riders progressing through competitive motocross ranks.
- Capacity
- 143.9 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 87.2 kg
- Seat height
- 950 mm
- Power
- 11.5 HP (8.5 kW)
What’s new for the 2019 KTM 150 SX
vs the 2018| Spec | 2018 | 2019 |
|---|---|---|
| Seat height | 960 mm (37.8 inches) | 950 mm (37.4 inches) |
Other years
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for motocross and cross-country racing on dirt tracks, not for street or commuting use.
- Built for
- A high-strung, revvy two-stroke that rewards aggressive riding, quick gear changes, and an active body position with sharp, flickable handling.
- Not ideal for
- Not suitable for riders wanting a comfortable, relaxed, road-going or touring motorcycle, or anyone seeking passenger capability or long-distance comfort.
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
- 143.9 ccm
- Power
- 11.5 HP (8.5 kW)
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.1319 HP/kg (dry)
- Bore x stroke
- 58.0 x 54.5 mm
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- Kokusan EMS
- Lubrication system
- Mixture oil lubrication 1:40
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Multi-plate clutch, Brembo hydraulics
Dimensions & weight
- Wheelbase
- 1485 mm
- Seat height
- 950 mm
- Dry weight
- 87.2 kg
- Fuel capacity
- 7.00 litres
- Ground clearance
- 375 mm
Chassis & suspension
- Frame
- 25CrMo4 steel central-tube frame
- Front suspension
- WP-USD, AER 48, Ø 48 mm
- Rear suspension
- WP shock absorber with linkage
- Front wheel travel
- 310 mm
- Rear wheel travel
- 300 mm
- Rake (fork angle)
- 26.1°
Brakes & wheels
- Front brakes
- Single disc. Four-piston calipers.
- Front brakes diameter
- 260 mm
- Rear brakes
- Single disc. Two-piston calipers.
- Rear brakes diameter
- 220 mm
- Front tyre
- 80/100-21
- Rear tyre
- 100/90-19
Other
- Color options
- Orange/white/black
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 | 2009 | 2013 | 2018 | 2019 | 2022 | 2026 |
|---|---|---|---|---|---|---|
| Capacity | 144 cc | 144 cc | 144 cc | 144 cc | 144 cc | 144 cc |
| Dry weight | 91 kg | 91 kg | 87 kg | 87 kg | 88 kg | 93 kg |
| Seat height | 985 mm | 992 mm | 960 mm | 950 mm | 950 mm | 958 mm |
| Fuel capacity | 8 L | 7.5 L | 7 L | 7 L | 7.5 L | 7.2 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 150 SX?
The 2019 KTM 150 SX has a Capacity of 143.9 ccm (8.78 cubic inches).
What engine power does the KTM 150 SX have?
The 2019 KTM 150 SX has a Power of 11.5 HP (8.5 kW).
How many gears does the KTM 150 SX have?
The 2019 KTM 150 SX has a Gearbox of 6-speed.
How much does the KTM 150 SX weigh?
The 2019 KTM 150 SX has a Dry weight of 87.2 kg (192.2 pounds).
Shop this bike
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The 2019 KTM 150 SX is a lightweight and powerful motocross bike that offers excellent handling and performance on the track. With a 150cc two-stroke engine, this bike delivers impressive power and torque, making it a top choice for riders who want to dominate the competition. The bike's compact and agile design allows for precise control and maneuverability, while its suspension system absorbs bumps and jumps with ease. Overall, the 2019 KTM 150 SX is a top contender in the 150cc motocross class, offering an exhilarating riding experience for enthusiasts.
The 2019 KTM 150 SX motorcycle is a top performer in its class, with its lightweight and powerful two-stroke engine delivering impressive performance on the track. Its agile handling and precise control make it a top choice for riders looking to dominate the competition. With its advanced suspension system, the bike can handle jumps and bumps with ease, offering a smooth and exhilarating riding experience. Overall, the 2019 KTM 150 SX is a top contender in the 150cc motocross class, delivering an unbeatable combination of power, handling, and performance.
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