Yes.
Yes, if you get bigger tires it will say you are going slower than you are, and visa versa, you can go to a mechanic to get it recalibrated
yes it changes the speedometer reading
To change the speedometer gear on a 1988 Jeep Comanche with 4x4 for bigger tires, first, determine the correct gear ratio based on your new tire size. Remove the speedometer cable from the transfer case, then unbolt and remove the speedometer gear housing. Replace the existing gear with one that matches your new tire size and reinstall the housing and speedometer cable. Finally, test the speedometer to ensure it's accurate.
if the diameter will be greater or less then the speedometer will be effected
yes!! of course, because the shaft is designed to rotate a certain speed, according to the car advancing speed.
A guage/ auto electric or speedometer shop can recalibrate the speedometer to adjust for bigger or smaller tire size. Why do you want to know that?
If the outside diameter changes, then the speedometer will change
To change the speedometer reading on a VS Holden Commodore, you would typically need to reprogram the vehicle's Electronic Control Unit (ECU) using specialized diagnostic tools or software. Alternatively, if the speedometer is inaccurate due to tire size changes, recalibrating the speedometer by adjusting the vehicle's speed sensor or using an aftermarket speedometer calibrator can help. However, it's important to note that altering speedometer readings for fraudulent purposes is illegal. Always consult a professional for accurate adjustments.
IF you change the tire size from OE either bigger or smaller there will definatly be a change from the actual speed you are going. Not a huge difference but by maybe 1-3 mph depending on your tire size
It does not change the actual speed of a vehicle but changing tire size can affect the accuracy of the speedometer.
A change in overall tire height will change speedometer accuracy.
Yes, tires that are larger or smaller in diameter than original factory size will cause a car's speedometer to be wrong.