275 55R20 vs. 275 60R20 – Tire Size Comparison:

If you’re an avid car enthusiast, then you’ve probably wondered what the difference between these two tires might be.

Let’s compare the 275 55R20 and 275 60R20 to see if we can help shed some light on this question.

The main difference between the 275 55R20 and 275 60R20 is width and diameter.

The sidewall of 275 60R20 is 6 mm wider than on 275 55R20 tires, which will increase the contact patch with the ground and make you feel more confident behind the steering wheel even when driving off-road (but it also increases rolling resistance).

On width alone, you would think that sixty radials are always better than fifty fives but they are not.

The 27560R20 is an obvious upgrade from the 27555R20, but there are still some differences between them both.

In a tabular form right below are some of the differences between these tires that you can consider looking at to broaden your knowledge and help you in making a decisive decision as regards which tire to go for.

parameters 27560R20 27555R20 Difference
  • Overall diameter
33  inches 31.9 inches +1.1 inches(+3.4%)
  • Aspect ratio
60 55 +5(+3.5%)
  • Revs per Mile
612 615.84 -39.84(-6.5%)
  • Sidewall height
6.5 inches 6 inches +0.5inches(+9.1%)
  • Section width
10.8 inches 10.8 inches 0inches
  • Circumference
103.6 inches 100.2 inches +3.4 inches

After taking your time to go through the above-listed table, you will not only have gained the knowledge of the differences between the two but also the right tire that will fit your vehicle.

Will 275/55r20 fit 275/60r20?

What are you going to drive on? If your vehicle is capable of using a different size tire, consider switching to a more aggressive tire that will be less likely to skid and allow you to maintain better control over your vehicle in poor conditions.

The 275/55r20 will fit a 275/60r20, although they are both popular in the tire industry and are suitable for different varieties of vehicles.

The 27560R20 is the latest version of the 27555R20 tires, there is not much difference between the tires size-wise.

They both have the same width size and will suit your vehicle if its regards to the width, but this should not be the reason why you should purchase the tire as you will need to take into account finding the right tire size for your vehicle.

At higher speeds, tires with larger contact patches are much more effective at dissipating heat, which can lead to uneven wear patterns or even blowouts if you’re not cautious tires can last longer when they’re on their optimal size, regardless of weather conditions.

If you don’t plan on off-roading and need to be concerned with snow and ice, sticking with a lower tire pressure could give you a safer driving experience in winter weather. While high speeds will become difficult, slower speeds aren’t as impacted by smaller contact patches.

This is due to two factors: The physics of force, how it relates to tire inflation; and how heat affects pressure.

ALSO SEE: 275/60r20 vs 275/50r20

275 55R20 vs. 275 60R20

Can I use 275 55R20 instead of 275 60R20?

The answer to that question is no, you cannot use a smaller tire in place of a larger one. The reason for that is simple: it’s unsafe and illegal!

Tire manufacturers design their tires with very specific dimensions for a reason, which is to ensure your vehicle remains safe on the road at all times.

Doing otherwise would mean risking your safety along with those around you by driving on tires that are not up to code or meant for your car and its needs.

The size of your tires is measured by its width (measured in millimeters), its profile (the aspect ratio between height and width), and its diameter (measured in inches). In that case, you are talking about a 20-inch tire with either a 5.5 or 6 sidewall.

As you may have noticed, there is no set answer to which tire has a bigger diameter as both are equally wide but it’s only one number that separates them: 10 millimeters!

If you are looking to replace your existing tires, there is no reason why you should look for a smaller size.

Likely, you would only end up with a less safe and less functional product that doesn’t meet your needs!

So if you’re not sure about what size tire you should be looking for, it would be safer to ask your dealer for help.

That way, he or she can verify what size tires you need and ensure that you’ll be driving on a safe and reliable product that will serve your needs now and in years to come!

How Tall Of A Tire is a 275 60 r20?

The 275 60 R 20 is a very tall tire, with an aspect ratio of 44%, meaning that for every 1 inch of height on a 15-inch wheel, there is a total of 2 inches in diameter. It’s a tall tire and will look pretty big on most vehicles that run them.

A 275/55 R 20 is one of those tires that are going to ride a little softer than you would expect because of how tall it is. If you have an older truck that still rides like a rock, these might be better for you.

The upside to them being so tall is that they will last longer, though not nearly as long as some tires that are shorter and wider.

For example, if you put 265/75 R 17 on your truck instead of 275/60 R 20, you could probably get away with replacing them once every 5 years or so.

With these taller ones, however, you may need to replace them every 3-4 years depending on how hard your vehicle is driven.

The other thing about a tire that’s a 44% aspect ratio is that it has more sidewall flex than most other options out there.

As you can imagine having more sidewall flex means that you’re going to be able to handle a little bit better off-road but at a cost.

On-road they’re going to ride rougher than shorter and wider tires because of how tall they are and how much flex there is in them.

In general, if you’re going to be off-roading and you want a tire that can handle a little rougher terrain, these are dering.

However, if you don’t plan on doing any off-roading, then it would probably be better to stay away from them as they will cost more than many of their counterparts and won’t last nearly as long.

Author: Mechanic Mike Besso

Hi There, I am Mike Besso and this website is dedicated to the automotive industry. I have been a mechanic for many years and my experience includes fifteen specialization in heavy commercial work as well as private cars. I am a specialist and certified automotive mechanic (Both Heavy Commercial and Private Cars). I worked for a long time at Global Rebound Automotive companies (Toyota, TATA, BMW, Nissan, TVs, and Others ) as a Mechanic and Mechanics Supervisor. I hope to share some of my knowledge with others.

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