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www.reference.com/vehicles/bigger-tires-affect-speedometer-54ef47807327f7d0

Bigger tires will cause your speedometer to register a speed that is slower than your actual speed. For example, if your speedometer says 35 miles per hour on 20-inch diameter tires, changing to 23-inch diameter tires will make your true speed 40.25 mph, even though your speedometer will still show 35 mph.

itstillruns.com/tire-size-affects-speedometer-car-4926157.html

How Tire Size Affects the Speedometer in a Car by Derek Odom . ... Let's look at why changing tire size would affect the speedometer. Altered Tire Size. For those who have off-road vehicles and put larger tires on for better performance on the trail, the speedometer will be affected. Since there is more surface area and a larger circumference ...

auto.howstuffworks.com/.../safety-regulatory-devices/speedometer4.htm

But, if a car is modified, its speedometer may need to be recalibrated. Changing tire size is one of the most common things car owners do that can affect speedometer accuracy. That’s because larger tires cover more ground in one complete revolution. Consider the example below.

tiresize.com/speedometer-calibration

Your speedometer is reading how many revolutions your tires are making not how fast they are spinning. When you go to bigger tires the circumference of the tires is larger, meaning the distance around the tire is longer. Thus, with each revolution you are traveling further than before. Therefore your actual speed is higher than your speedometer ...

www.onlineconversion.com/bigger_tires.htm

Ever wonder how far off your speedometer is with your new bigger tires? I'm using a simple ratio calculation, so this info will only approximate your corrected speed and depends on the accuracy of tire size diameters (assumimg nothing but tire size has changed).

www.answers.com/Q/Do_bigger_tires_effect_the_speedometer_How_do_you_calculate...

Larger tires will affect the speedometer. There may not be a large difference in your application, but there will be a difference. You may be reading 45mph, and really be going 48mph. the worst ...

www.discounttire.com/learn/speedometer-accuracy

Tire Size and Speedometer Accuracy . If you are planning on, or have already replaced your original equipment tires with a different tire size, it is important to remember that changing your tire size can affect the accuracy of your speedometer.

www.youtube.com/watch?v=tfl3COWcRTo

How does size of wheel and tire affect speedometer Jace Auto. ... Trade in your wheels/tires for a discounted price on our new inventory! ... Choosing bigger tyres for your 4x4 benefits & issues ...

www.reference.com/vehicles/larger-tires-affect-speedometer-accuracy-def9b2ae4...

The speedometer of a vehicle determines speed based on the revolutions of the factory sized wheels and, as such, mounting larger tires will affect its accuracy. Fortunately, there are online conversion tools that help determine what speed a vehicle is traveling with larger mounted tires.

www.busboss.com/info-tire-size

Small changes in tire size can have large effects on odometer readings. Calculate the effect of tire size on vehicle odometer readings. Small changes in tire size can have large effects on odometer readings. ... Smaller diameter tires will effect odometer reading more than larger tires. BusBoss Popular Blog Posts. Recent Posts. Subscribe To Blog.