20×8.5 Tire Size: What Fits This Rim?

“What tire sizes fit on 20×8.5 rims?”

If you are wondering about the right tire size for this rim, we’ve got you covered.

This article will dive into the details of the 20×8.5 rim and explore the tire sizes that work best with it – from the most fitting to the largest and smallest options for your 15×7 wheels.

What Does A 20×8.5 Rim Mean?

Before we delve into the tire sizes, let’s break down what the 20×8.5 rim means:

  • The “20” refers to the wheel diameter, which is measured in inches. 
  • The “8.5” represents the wheel’s width, also measured in inches. 
20x8.5 rim explanation

What Size Tire Fits A 20×8.5 Rim?

Now that we know the dimensions of a 20×8.5 rim, let’s explore the tire sizes that are compatible with it. 

The following are some common tire sizes that are recommended for 20×8.5 wheels:

  • 235/30 R20
  • 235/35 R20
  • 245/30 R20
  • 245/35 R20
  • 245/40 R20
  • 245/45 R20
  • 255/30 R20
  • 255/35 R20
  • 255/45 R20
  • 265/35 R20
  • 275/35 R20

Tire sizes can seem confusing to understand, so here’s a simple explanation of the sizing pattern on your tire:

  • The first number in the sequence is the tire’s total width measured in millimeters
  • The second number represents the sidewall height as a percentage of the tire width
  • R stands for Radial. It means the tires has the radial construction
  • The last number refers to the diameter of the recommended wheel for a tire (measured in inches)

Let’s take the 235/30 R20 tire for example. These numbers mean:

  1. Total tire width: 235 mm
  2. Sidewall height: 30% of 235 (70.5 mm)
  3. Wheel diameter: 20 inches 
 235/30r20 tire explanation

What Is The Best Tire Size For 20×8.5 Rims?

While there are several tire size options for a 20×8.5 rim, some are considered better suited for various reasons. 

The two most recommended tire sizes for 20×8.5 rims are 245/35 R20 or 255/35 R20

These sizes balance grip, handling, and aesthetics, making them popular for enthusiasts looking to enhance performance and style.

What Is The Widest Tire Size On A 20×8.5 Wheel?

The recommended widest tire size you can safely mount on a 20×8.5 rim is 275/35 R20

This size provides a broader contact patch with the road, which can enhance traction and cornering performance. However, it’s essential to ensure that your vehicle’s fenders and suspension can accommodate this wider tire size without any rubbing or clearance issues.

What Is The Smallest Tire Size For 20×8.5 Rims?

Conversely, if you’re looking for a more conservative, narrow tire for your 20×8.5 rims, the 235/30 R20 size is the smallest recommended option. It might be suitable if you prioritize a smooth ride and minimal impact on fuel efficiency.

However, when using this size, you may experience a slight tire stretch, depending on your vehicle’s specifications. Stretching a tire like this can be a matter of personal preference, as some enthusiasts prefer the aesthetic of stretched tires.

Final Thoughts

Selecting the appropriate tire size for your 20×8.5 rims is pivotal for safety and performance. 

While there’s an array of options, it’s advisable to opt for sizes that strike a balance between width and sidewall height, such as 245/35 R20 or 255/35 R20. However, if you desire a broader footprint, 275/35 R20 is the way to go.

Always check your vehicle’s compatibility and consider your driving preferences when choosing. With the right tire size, you can enhance your vehicle’s appearance and performance, making your driving experience even more enjoyable.

Read more: 20×9 Tire Size: What Fits This Wheel?
Read more: 20×9.5 Tire Size: What Fits This Rim?

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