Crankshaft speed sensor for two-wheelers

  • Function

    How the crankshaft speed sensor for two-wheelers works


    The crankshaft speed sensor measures the speed, position, and (optionally) the direction of rotation of the crankshaft. Engine management systems use this data to control injection and/or ignition timing.

    The sensor is a Hall or inductive sensor. The crankshaft is fitted with a pulse wheel which the sensor scans using a non-contact method. The reference point is determined by a missing element in the pulse wheel.

    Technical characteristics:

    • Inductive or Hall sensor
    • High signal accuracy
    • Broad temperature range: -40 °C to +150 °C
    • Wide range of engine speeds
  • Customer benefits

    Robust – versatile – accurate


    The Bosch crankshaft speed sensor supplies data for controlling the injection and/or ignition timing. It helps meet emissions limits and supports smooth engine operation for enhanced comfort.

    • Robust design
    • High measurement accuracy
    • Large air gap range
    • Contactless measurement
    • Compact design
    • Reduces fuel consumption and emissions
    • Compatible with start/stop applications

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