While both types of tires are designed for passenger vehicles, they have some distinct differences. Here’s a closer look at the key difference between 245 and 265 tires: One of the most notable differences between 245 and 265 tires is their width. As their name suggests, 245 tires are 10.43 inches wide, while 265 tires are 9.65 inches wide.
4282 posts · Joined 2009. #7 · Mar 25, 2014. The 245/45s you remove from the rear can eventually be placed in the front. Therefore it's not really a waste of $400 to upgrade to the 275/40s for the rear. I say go for it. Our Challengers really should have come with a 275/40 rear from the factory IMO.
225/45-R17 tires are 1.34 inches (34 mm) smaller in diameter than 215/55-R17 tires and the speedometer difference is 5.1%.
Actual. Use our wheel offset calculator to calculate the difference in wheel and tire position when switching to different wheel offsets/backspacing or tire size. Input your current tire and wheel setup including wheel offset, then add the new setup to compare positioning. The visualizer will show the new setup outlined in orange, the side by
225/45-R17 tires are 0.11 inches (2.9 mm) smaller in diameter than 225/40-R18 tires and the speedometer difference is 0.4%.
285/45-R22 tires are 1.75 inches (44.5 mm) larger in diameter than 265/40-R22 tires and the speedometer difference is 5.4%.
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