Does Tire Size Affect Speedometer?

Answer

Tire size can affect the speedometer of a vehicle. This is because the speedometer is attached to the sensor that detects how fast the wheel is turning. A larger tire that is bigger than the original equipment will spin slower and a tire that is smaller will spin faster.
Q&A Related to "Does Tire Size Affect Speedometer?"
The speedometer in almost every vehicle runs off the speed of the transmission, not the actual tires. However, some old Volkswagens and other makes and models do have a speedometer
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The speedometer is attached to a sensor that detects how fast the wheel is turning. This sensor is programmed to detect the speed based on a specific tire size (ie: manufacturer recommended
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When engineering your vehicle, the manufacturer invested time and
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Let the radius of the tire be 250 mm. If the radius decreases by 5mm, ( worn-out tire) the reduction in the speed (5/250) = 2% for the same number of revolutions of the tire. Meter
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