Monday, November 27, 2023

255/75 X 17 Tires

The Difference Between M+s And 3pmsf Markings

Mud Terrain Tire Review: Kumho MT71 Pizza Cutters (255-75R17) on the 4Runner Trail Wheels

Every all-season tire you will find online today has at least the M+S marking on the sidewall. This marking means Mud + Snow, which in theory should indicate that the tire will work on those surfaces.

However, this marking can be very misleading because it only signifies that the tread compound is soft enough , and that it has enough tread depth and sipes. All-season tires have this marking by default, but that doesnt mean that they are usable on snow or ice.

Contrarily, most all-season tires arent usable over mud, and only slightly usable on snow. Sure, you can use these tires over mud and snow, and they will have some traction, but not enough for safe driving. Braking will be especially bad, which is much more important than traction when it comes to safety.

Fortunately, many all-terrain tires today come with the 3PMSF marking on the side, which stands for Three-Peak Mountain Snowflake. These tires are tested for harsh wintry conditions and have much better traction and braking than M+S tires.

Now, its fair to say that some M+S all-terrain tires will work very well over snow its just that the manufacturers didnt send them for 3PMSF testing.

Load Capacity And Speed Rating

An automobiles load capacity is indicated in pounds, while its speed rating is indicated in alphabetical order, with L as the lowest and V as the highest max speed, respectively.

It goes without saying that the highest load index and speed rating are the best, but you can lower the bar if you dont drive at 149 mph.

How To Read The Tire Sizes 255/75r17 265/70r17

There are four parts to the tire size 255/75r17, and each part bears a certain meaning. Before you decide to interchange or replace the Tire, you must learn about them. Here is the explanation of each part of the tire size 255/75r17.

  • 255 means the width of the tires in millimeters
  • 75 shows the percentage of height to the width or the Aspect Ratio
  • R indicates Radial Construction
  • 17 indicates the Diameter of the Rim

Doing the Same for Tire Sizes 265/70r17

  • 265 means the width of the tires in millimeters
  • 70 shows the percentage of height to the width or the Aspect Ratio
  • R indicates Radial Construction
  • 17 indicates the Diameter of the Rim

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Load Index And Speed Index Of A Tire 255/75r17 And 265/70r17

The load index refers to the maximum load-bearing capacity, whereas the speed index refers to the Tires maximum allowable speed at a full load. These are very crucial stats to know before you decide to interchange tires.

Index information can be found on the sidewall right after the Tire size number. It is a combination of numbers and letters that bear a particular meaning.

Here is an example of how the index information is usually written on the sidewall: 255/75r17 90A. The 90A stands for load and speed index, with 90 indicating a maximum load-bearing capacity of 600 kg, whereas A denotes an allowed speed of up to 170 km/h.

Check the load and speed index. They must be as close as possible to fit precisely. These values change depending on the vehicles weight and wheel size. Here is a table that shows various load and speed indexes, so you get the idea.

Load Index
Up to 210 Km/h

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BFGoodrich Mud

Shop all 255/75R17 tires and get a quote online or at your nearest Tires Plus location. Review load index performance, warranty information, speed rating, and sidewall specifications of each tire to choose the best tire for your car, truck, minivan, or SUV. Get a quote, make your installation appointment, and do it all online! At Tires Plus, you can bet your install will be fast and easy, and that you’ll get the great service and low prices you want.

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Nitto Trail Grappler M/t Best Overall

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The Nitto Trail Grappler M/T features the deepest treads on this list at 21/32nds, meaning long-lasting tread and a longer lifespan for the tire.

Not just that, the treads are protected with stone ejectors to repel stones and clear mud. There are grooves on the tread to strengthen grip while the deep center sipe prevents hydroplaning and enhances wet traction.

The tire boasts 3-ply sidewalls combined with a high turn-up construction that adds an extra reinforcement layer to help it resist punctures more effectively.

On top of that, the Q speed rating indicates a max speed of 168 mph, also the highest on this list.

However, the deep treads make the Nitto Trail Grappler M/T, not an ideal option for sand terrain as it will sink your vehicle.


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The tread blocks on this tire are close together, which offers more contact with pavements and tighter grip on all surfaces.

This tire has grooves on the tread blocks like the Nitto Trail Grappler M/T but in a larger number. This ensures a better grip on all types of surfaces, whether its on-road or off-road driving.

Apart from that, the Goodyear Wrangler DuraTrac features low rolling resistance, equivalent to low fuel consumption. This way, if you take an off-road trip to a less populated area, you dont have to worry too much about running out of gas.


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What To Look For When Choosing All

Modern all-terrain tires almost always come with an all-season tread compound, which is designed to work both in warmer and colder conditions. That said, there are no all-terrain tires with a winter compound available, nor all-terrain tires with a summer compound. Thats good because it makes the choice of tires much easier.

Now that we cleared that out, lets have a look at other markings on the tire that are important for snow driving.

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How To Read Tire Size

If youre in the market for new tires, the first step is to check the size of your current tires. Simply check the sidewalls of your tires for a series of numbers and symbols that should look like this: P215/60 R17. The wheel diameter will be the last number in the series. In this example, the vehicle’s rim diameter is 17″.

The other numbers and symbols refer to the tire type, tire width measured in millimeters from sidewall to sidewall, aspect ratio, and tire construction type. The rim size is the most important number to pay attention to when youre shopping for tires that will fit your vehicle properly.

Again, if you dont have existing tires to refer to, you can find your vehicle’s recommended tire size by checking the vehicle’s tire information placard on the inside of the driver’s side door or your owners manual.

What Does 255/75r17 Mean

Tires for the Wrangler JL! 285/75-17 BFG KO2 is Here!

Trying to decode the size of the tires? Scroll down the page to learn what all these numbers on the sidewall stand for.

P or LT The first letter in the string denotes the class. P stands for passenger vehicles, LT is intended for light trucks carrying heavy loads.
255 It means the width of the tire is 255 millimeters
75 The tire has an aspect ratio of 75. To put it simple, the sidewall height is 75% of the width, so it would be 7.5.
R R stands for the Radial, a standard construction method for about 99% of tires.
17 The tire is designed to fit 17 x 6.5-8.5 rims that are 17 inches in diameter.

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What Is A 255/75r17 Equivalent To

Check out the chart below to find possible alternatives to the 255/75R17 tire size staying within the 3%-range of the tire diameter, allowing to choose wider wheels or tires with smaller sidewalls. A good rule of thumb is to avoid decreasing the diameter of the wheel. If you are not sure about the custom sizes, consult the experts or stick to the factory tire size.

Tire size

Toyo Open Country M/t

Toyo is a tire manufacturer that is rarely considered when it comes to any kind of off-road or mud-terrain tires. The good news is that they have a model for those scenarios, and its the Open Country M/T.

At first glance, the beefy tire gives you the impression that there is not mud that it cannot get out of, and that is true. This model has an exceptional performance in mud thanks to the bigger tread blocks that extend over the shoulders. To ensure constant grip and avoid mud and stone buildup, it is designed with stone ejectors that help eliminate mud buildup in the tread.

On the road, it has decent performance with plenty of grip, but it felt a bit slow to respond to my inputs. The wet performance was better, especially when it came to hydroplaning.

Thanks to the tread design, the Toyo Open Country M/T managed to surpass my expectations on unpacked snow. It performed like a champ until it came to packed snow. Thats when I started to feel the tires loosing grip sooner than I would want to.

The ride comfort was decent, and the Toyo Open Country M/T managed to provide a smooth experience. One problem I had with it was that the tire noise was too loud.


  • The tires can get fairly loud

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/75r17 Vs 265/70r17 Tire: Comparison Table

We can see two major differences in the tire type 255/75R17 and 265/70R17. These are the section width and aspect ratio .

An increment of 10mm width with a decrement of a 5% aspect ratio also causes the major parameters to change, responsible for a good performance of a vehicle.

255/75R17 Tire
Revolutions per mile difference: 7.53 1.3% 582.79 RPM Km

From the comparison chart we can see there has been a very low decrease in diameter and circumference. Both of these parameters are steady at 1.3% lower than the previous. It resides within the standard accepted limit of 3%.

The width difference is observed to be 3.9% due to 10mm of increment. This increases the tires width and improves stability, cornering at high speed, and balance in different types of climates.

It is seen that the sidewall height reduces by 3.3%, which is manageable and under the limit. Finally, the RPM increment is observed, which improves fuel efficiency in long drives.

What Is 255/75r17 In Inches

1 New LT255/75R17 Yokohama Geolandar M/T G003 Load Range C Tire 255 75 ...

When we convert 255/75R17 to inches, it is equivalent to 32x10R17. Let us break down the tire size dimensions for better understanding. 10 inches or 255 mm stand for section width, or width of the tire tread. 32 inches or 814 mm represent the overall diameter of the tire, or tire height. 17 inches is the rim diameter, or the diameter of the wheel the tire can be mounted on.

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What Is 255/75r17 Tire Width

255/75R17 tire has a width of 10 inches or 255 mm that reflects the measurement of tire’s width from its inner sidewall to its outer sidewall at the widest point . Tire width is also called tread width, section width or cross section width. Tire width should be measured without any load placed upon the tire after it has been properly inflated and mounted on its industry assigned measuring rim.

Best Tires For Jeep Wrangler Faqs

Why You Should Invest In the Best Tires for Jeep Wrangler?

Investing in the best Jeep Wrangler tires are beneficial for you in several ways:

  • Improve your vehicles performance.
  • Use fuel more efficiently.
  • Prolong tread life and the tires life overall.
  • Ensure precise handling and steering response.

Why Not Replace with Original Honda Equipment Tires?

You can always choose to replace your old tires with OEM ones.

However, with an adequate understanding of these products and the will to try other tires, you can modify your Jeep Wrangler corresponding to your needs and preferences.

Another advantage of opting for other tires is that you can shop within a budget that suits you.

What size tires can I put on my Jeep Wrangler without a lift?

The maximum size compatible with a Jeep Wrangler is 35 inches in tire diameter. But its not recommended. A 33-inch one is safer.

What tires come stock Jeep Wrangler?

Tires that are pre-installed in the Jeep Wrangler have sizes ranging from 17 to 18 inches in rim diameter.

Whats the largest tire you can put on a stock Jeep Wrangler?

The recommended tire size for a Jeep Wrangler is 33 inches in diameter.

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Whats The Difference Between Various All

Unlike touring or highway tires, the all-terrain category consists of some very different products. Each manufacturer aims at different things when they design them. For instance, BFGoodrich is popular in the off-road community, and for that reason, it produces more aggressive all-terrain tires. Meanwhile, Michelin and Continental customers expect sophisticated ride and stability on the road, so the manufacturers give them that.

But how do you distinguish between these tires? Well, the tread pattern is actually the main factor at play here. Tires with deeper grooves and more aggressively-designed tread usually have better traction for off-roading, especially in mud or over large rocks. Moreover, these tires will also have tread blocks on the sidewalls for even better traction in deep mud. Ultimately, off-road tires usually come with three-ply construction, which makes them tougher and more durable on uneven terrains. Meanwhile, all-terrain tires with two-ply construction are lighter, which makes them better-suited for on-road driving.

Kumho Road Venture Mt71

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Kumho has always been considered as a tire brand that offers excellent bang for the buck tires. Released as an upgrade over two previous tire models from Kumho, the Road Venture MT71 is a perfect definition of it.

Mud performance on this tire is excellent, and in some cases, it may even compete with some of the premium rivals. Thanks to the tread design and deep lugs, I feel like this is a tire that will never get stuck in the mud, regardless of how deep it is. On top of that, the Kumho Road Venture MT71 is a tire that is equally capable of tackling dirt, gravel, rocks, and even sand in some instances.

As a general rule, if a tire excels in one category, it wont perform as well in another, and thats the case with the dry and wet performance. While in both cases, the tire performs as you would expect, the driving dynamics arent there. On top of that, the overall traction is not the best, especially when it starts to rain. While there are some improvements over the previous models, there is more to be improved.

The snow performance is good and bad. On unpacked snow, the tire performed almost as well as it did on mud. When it came to packed snow, the Kumho Road Venture MT71 showed its weakness and offered very limited traction.


  • Wet and packed snow performance is not good

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What You Must Consider Before Interchange Or Replace Tire

There are important things to consider before replacing or swiping the Tires. You cannot simply replace the 255/75r17 tire with the 265/70r17 tire that is in a different shape.

For example, if the aspect ratio of the existing tire is 40%, replacing it with a tire that has an aspect ratio of 45% might not be a good option.

Doing so will have various consequences on the cars overall performance, such as variations in top speed and speedometer.

However, to a certain extent, such as minor changes in the diameter or the sidewall, you can switch Tires. However, this can only be done in compliance with the manufacturers recommendations.

Anyway, when replacing the Tire, the simple guideline to follow is that the current tires size, load index, and speed rating should all match with the replacement Tire.

/75r17 Tire Size In Inches


255/75R17 tires are 32.1 tall, have a section width of 10.0, and fit wheels with a diameter of 17. The circumference is 100.7 that translates into 629 revolutions per mile. As a rule, they can be mounted on the wheels with 17 x 6.5-8.5 rim width. In the high flotation system, the equivalent tire size is 32.1x10R17.

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Tread Pattern And Biting Edges

You can easily distinguish between a tire thats good for snow and one that isnt just by looking at the tread pattern. Tires designed for warmer conditions usually have less prominent tread pattern to increase the contact patch with the road. That helps greatly for driving on dry and wet pavement, but its worse for driving over snow.

Tires that have a deeper and more prominent tread pattern are better for driving over snow. More precisely, the more tread blocks there are on the tire, the better it bites into the snow. Most all-terrain tires are also equipped with small sipes built into the tread blocks, which further increases the number of biting edges. The busier the tread pattern, the better it works on snow.

Now, all-terrain tires have a more aggressive tread pattern by default, which is why most of them work excellently over snow. However, when choosing a new set, always look for the small zig-zag sipes. Tires with zig-zag sipes will work much better for driving on snow, providing you with extra traction and stronger braking.

With that said, the tread pattern on all-terrain tires can start to wear over time and thats especially true for the smaller sipes. For dry conditions, that shouldnt make a big difference, but wet and snow performance will start to degrade. Usually, you need to replace the tires sooner if you want to keep the snow traction and braking on a high level.

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