2016 KTM 150 SX

In a class of its own

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The engine of the 150 SX is well-known as the most powerful and most competitive engine of the class. However, it is time to give a new push to the segment and set a clear statement that two-stroke technology is going to have a successful future due to its outstanding power-to-weight ratio, low cost and simplicity. The newly developed 150 cm³ engine for MY 2016 features a completely new architecture with the latest know-how and state-of-the-art technology. The result is that it produces better power all over the rev range, it’s more than 2 kg lighter than the predecessor and it is much more compact.


  • Design

    1-cylinder, 2-stroke engine

  • Displacement

    143.6 cm³

  • Bore

    56 mm

  • Stroke

    58.4 mm

  • Starter


  • Transmission


  • Primary drive


  • Secondary gear ratio


  • Clutch

    Multi-plate clutch, Brembo hydraulics

  • EMS



  • Frame design

    Chrome-molybdenum steel central-tube frame

  • Front suspension

    WP USD Ø 48 mm 4CS closed cartridge

  • Rear suspension

    WP shock absorber with linkage

  • Front brake

    Disc brake

  • Rear brake

    Disc brake

  • Front brake disc diameter

    260 mm

  • Rear brake disc diameter

    220 mm

  • Chain


  • Steering head angle

    63.9 °