speedometer/tire size

Your originals are about 28.8" tall and the new ones will be about 30.5 so your speedo will read about 5.5% slow. eg: at a reading of 65 you will actually be going around 68.5

It will probably become more accurate. Can you borrow a gps to measure speed?

tw _____________________________________________________________________

"There is a very fine line between 'hobby' and 'mental illness'."

Pronunciation: 'jEp Function: noun Date: 1940

Etymology: from g. p. (G= 'Government' P= '80 > i'd like to switch my tires from 235x75x15 to 245x75x16. how much would

Did you really change from 15 to 16 inch rims? Yes: Speedometer/odometer 5.5% slow No: Speedometer/odometer 2% slow

A more important question would be 'What was the size of your stock tires?"

FWIW: Jeep speedometers are almost always miscalibrated. My unscientific test with a roadside radar unit revealed my WJ to be 3% fast with stock size tires.

Found this useful easy to use