Compare 205/55R16 vs 155/80R15

Let's break down what happens when you switch from your original 205/55R16 tires to the new 155/80R15 setup. The new tire has a total diameter of 24.8 inches. This means it is 0.5% shorter than your factory tire. Knowing this size difference is the first step to making sure your new tires won't rub against the car's body when you go over bumps.

Here is the great news: car experts always recommend keeping the size difference under 3%, and your new choice fits right in! Because you are staying within this safe zone, your car's computer, brakes (ABS), and suspension will keep working perfectly, just like they did from the factory.

Because the new tires are a different size, they will spin at a slightly different speed. When your dashboard says you are driving 60 mph, you will actually be going 59.7 mph. Also, when you are cruising on the highway, your engine will run about 0% higher (more RPM) than it used to. It's a good idea to keep this in mind so you don't accidentally get a speeding ticket!

Now, let's talk about how the car will look. Your new wheels will sit nicely tucked inside the fenders, just like a standard factory car. As long as you have enough room on the inside near the suspension, you will enjoy a smooth, comfortable ride without worrying about the tires hitting the outside of the car.

Finally, looking at how the tire fits on the wheel: the tire you picked is quite narrow for the wheel size, creating an "Aggressive Stretch." While this looks very cool and is popular in the car show scene, it leaves the metal edge of your wheel completely exposed to curbs. You will need to be extra careful when parking and always keep a close eye on your tire pressure!