Comments by "IIIRattleHeadIII" (@badass6300) on "Ignition Systems - How they Work | SCIENCE GARAGE" video.

@justahasbeen Which is done by a gear and a counter sensor that counts how many teeth per second each wheel passes by, if a gear is faster or slower then more or less gears are passing the sensor per second which means it has to make them all equal. I think there are other methods as well, but just to clarify one of them and a quite common for most standard and cheaper ABS-s for traction control and wheel speed balancing out there.
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