Why your car's speedometer might be lying to you
In short: Changing your tires does more than alter your ride; it fundamentally changes how your vehicle calculates motion. This video explains the mechanical relationship between tire rotation and distance, revealing why different diameters can lead to inaccurate speed readings.
The speedometer relies on a direct correlation between the rotation of the wheels and the distance traveled over the ground. When you change the size of a tire, you alter its circumference. Because the vehicle's internal sensors assume a specific diameter is spinning, any deviation in actual size causes the displayed speed to drift from reality.
The video explores why wheel size alone isn't always the culprit and examines how these discrepancies affect more than just your indicated speed. It provides a technical breakdown of how movement is translated into data, making it essential for understanding vehicle mechanics beyond the surface.
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Sources
- Summary by Intellect · source: Why Does Tire Size Affect the Speedometer?
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