305 70r17 vs 315 70r17 Tire Size

Do you know the difference between a 305 70r17 tire and a 315 70r17 tire? If not, don’t worry! You’re not alone. Many people don’t know the difference, and that’s because most people don’t need to know. But if you’re wondering which size is better for your vehicle, then read on!

305/70r17 vs 315/70r17 Table

This table will discuss the differences between these two sizes and help you decide which one is best for you.

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What Does 305 70r17 Mean?

The first number, 305, is the width of the tire in millimeters. The second number, 70, is the aspect ratio. The aspect ratio is the height of the tire sidewall expressed as a percentage of the width. In this case, the sidewall is 70% of the width of the tire. The letter R indicates the construction of the tire, and the 17 is the wheel diameter in inches.

What Does 315 70r17 Mean?

The 315 70r17, on the other hand, is a bit wider and has a slightly smaller sidewall. The tire’s width is 315 millimeters, the aspect ratio is 70%, and the rim diameter is 17 inches. Also, the letter R represents the construction of the tire.

Tire Width

As you can see from the numbers, the 315 70r17 is wider than the 305 70r17 by ten millimeters. This may not seem like a lot, but it can make a difference in the way your vehicle handles. A wider tire will provide more traction, but it may also make your vehicle more difficult to handle.

If you’re not sure which width is best for you, it’s always best to consult with a professional. They can help you decide which size is best for your vehicle and driving habits. Also, you can check under the driver seat chart to confirm which tire size you need.

Aspect Ratio

The aspect ratio is the height of the tire sidewall expressed as a percentage of the width. In this case, both tires have an aspect ratio of 70%. This means that the sidewall of both tires is 70% of the width of the tire.

The Aspect Ratio of 305 70r17 Tire is 70% which is 213.5 mm, and the Aspect Ratio of 315 70r17 Tire is also 70%, which is 220.5 mm. The difference in aspect ratio is not as noticeable as the difference in width. However, it can still make a difference in the way your vehicle handles.

Construction Type

The letter R in both tire sizes represents the construction type. The R stands for radial, which is the most common type of tire construction. Radial tires are made with steel belts that run across the tread in a radial direction.

This type of construction provides a smoother ride and better fuel economy. In this case, both 305 70r17 and 315 70r17 tires have the same construction type.

Rim Size

Rim size is the diameter of the wheel that the tire is mounted on. In this case, both tires have a rim size of 17 inches. This is a standard size for many vehicles. It’s an important factor to consider; otherwise, the tire will not fit on the wheel.

Circumference

The Circumference of 305 70r17 Tire is 106.22 inches, and the Circumference of 315 70r17 Tire is 107.95 inches. The circumference is the distance around the outside of the tire. The difference in circumference is not as noticeable as the difference in width or aspect ratio. However, it can still make a difference in the way your vehicle moves.

Revolutions Per Mile

The difference in circumference also means that the 315 70r17 tires will make more revolutions per mile than the 305 70r17 tire. This can affect fuel economy and the way your vehicle handles. The RPM of a 315 70r17 tire is about 586.93 KM. The RPM of a 305 70r17 tire is about 596.5 KM.

Suppose you’re considering switching to a different size tire. In that case, it’s important to consult with a professional to make sure that the new size will work with your vehicle. They can help you choose the right size and construction for your needs.

Our observation

The main difference between 315 70r17 and 305 70r17 tires is the width and the aspect ratio. The 315 70r17 is wider by ten millimeters and has a slightly smaller sidewall. It looks small, but it can make a difference in the way your vehicle handles. Also, the letter R represents the construction of the tire.

If you are looking for a wider tire, the 315 70r17 is a good choice. But if you’re not sure which width is best for you, it’s always best to consult with a professional. They can help you decide which size is best for your vehicle and driving habits. Also, you can check the side of the driver seat chart to confirm which tire size you need.

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