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150 SX
144cc2-stroke1 cylLiquid-cooledElectric start
About the 150 SX
A 144cc two-stroke motocross bike built from the 125 SX, for riders who want more torque than a 125 in a light chassis.
- Family
- 125–200 2-Strokes
- Model years
- 2007 – 2025
- Also known as
- KTM 150 SX, 150SX, KTM 144 SX, 144 SX, 144SX, KTM 144
17 sources
- motorcycle.com › detail
- dirtbikemagazine.com › 2019-ktm-motocross-bikes
- motorcycle.com › detail
- dirtbikemagazine.com › ktm-motocross-bikes-for-2017
- dirtbikemagazine.com › ktm-recalls-125sx-150sx-250xc-w-300xc-w
- racerxonline.com › 2007-ktm-two-stroke-intro
- motorcycle.com › 2026
- motorcycle.com › 2025
- ktm.com › motocross
- ktm.com › 2-stroke
- dirtbikemagazine.com › ktm-reveals-2026-motocross-models
- dirtbikemagazine.com › 2025-ktm-motocross-lineup-announced-sma…
- dirtbiketest.com › first-look-2023-ktm-sx-xc-models
- bike-parts-ktm.com › 2023
- motorcycle.com › 2024
- motorcycle.com › 2023
- bike-parts-ktm.com › 144_MOTO
Generations
2025
150 SXRevived on the 2023 fuel-injected, electric-start platform with the 2025 frame update.
- Engine
- 144cc
- Cooling
- Liquid-cooled
- Starter
- Electric start
- Gearbox
- 6-speed
- Fuel
- Fuel injection
2019 – 2022
150 SXNew SX chassis and 6-speed Pankl gearbox.
- Engine
- 144cc
- Cooling
- Liquid-cooled
- Starter
- Kick start
- Gearbox
- 6-speed
- Fuel
- Carburettor
2016 – 2018
150 SXNew engine shared with the 125 SX.
- Engine
- 144cc
- Cooling
- Liquid-cooled
- Starter
- Kick start
- Gearbox
- 6-speed
- Fuel
- Carburettor
2011 – 2015
150 SXNew SX chassis shared with the 125.
- Engine
- 144cc
- Cooling
- Liquid-cooled
- Starter
- Kick start
- Gearbox
- 6-speed
- Fuel
- Carburettor
2009 – 2010
150 SXReplaced the 144 SX on the 125 SX chassis.
- Engine
- 144cc
- Cooling
- Liquid-cooled
- Starter
- Kick start
- Gearbox
- 6-speed
- Fuel
- Carburettor
2007 – 2008
144 SXFrom merged 144-sx.
- Engine
- 144cc
- Cooling
- Liquid-cooled
- Starter
- Kick start
- Gearbox
- 6-speed
- Fuel
- Carburettor
Year specs
- Engine
- 144 cc
- Bore × stroke
- 58 × 54.5 mm
- Cooling
- Liquid-cooled
- Starter
- Electric start
- Gearbox
- 6-speed
- Fuel system
- Fuel injection
- Horsepower
- —
- Torque
- —
- Dry weight
- 92.6 kg
- Wet weight
- —
- Seat height
- 958 mm
- Ground clearance
- 359 mm
- Wheelbase
- 1493 mm
- Fuel capacity
- 7.2 L
- MSRP
- $8,449
1 source
Gallery
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