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Nitto Exo Grappler AWT is rated 4.0 out of 5 by 64.
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Rated 5 out of 5 by from Excellent tire I put these Exo Grapplers on an F-150 because the tires it called for rounded off on the edges. No more rounded edges. I currently have 90k miles (5yrs) on them and they are moderately choppy. I rotated every 8-10k miles. Slight chop showed up around 40k miles. I pull a camper in the summers with it as well. These wear like iron. I think I will be able to safely put 140k miles on them. Off road when I get firewood they bite in the snow very well. They also do well in some mud when the frost is coming out. Cons: Stiff ride quality even at 45psi on my F150. Noisy after 40k miles
Date published: 2021-04-03
Rated 5 out of 5 by from Excellent These tires have met or exceeded all expectations I had for them. I have owned the same 1-ton diesel Ram for 16 years now and have gone through many tires. Nitto's have given me the best mileage for towing and being heavy. I am currently at 54K on these tires and plan to buy another set this summer when I hit 60K on them. Until now, 45K was the max I got out of a set of tires and those were my last set of Terra Grapplers so these are definitely wearing better. The tires handle snowy conditions here in the mountains of Montana better than a set of dedicated snow tires. Dry performance is great with a bit of noise from the tires. I have not had any issues on wet pavement like some of the other reviews discuss. I would say that my fuel mileage went down an average of 1mpg with these tires as well, but for 60K miles on a HD truck that tows heavy frequently I will take that trade off every day! Overall these tires are the perfect blend of a commercial quality with aggressive tread
Date published: 2021-03-16
Rated 3 out of 5 by from Uneven Wear and Cupping On Dually I have had good lick with Nitto/Toyo previously, but have battled radial pull from day one with these, which changes/varies with each rotation. Biggest issue is the fronts are cupping/scalloping badly. The front end has been checked, toe-in reduced, and nothing is worn out. As rotation time approaches the cupping causes them to become extremely noisy. The good things are the very tough, durable construction, and great stability when towing. I will not be buying them again.
Date published: 2021-01-16
Rated 5 out of 5 by from Great tire ROAD NOISE = whisper quite. Shhhh hunting wabbits. WET ROADS = confident and reassuring. No sideway flat bottom boats here. 18+" POWDER = traction for days, claws through like a snow leopard in heat. MELTED SNOW/SLUSH = stable a secure. Handled the sloppy stuff like a champ at a HS reunion. ICE = it's ice.... No Tanya Harding here, just a victory without a bat to the knee.
Date published: 2020-11-17
Rated 5 out of 5 by from Great tire The EXO Grappler is a great tire!!! Driving rough Alaska roads gravel and pavement, I have gotten over 70k miles on these babies!!! Drive in all weather increments, heavy snow, mud, rain!! They have been great!!
Date published: 2020-10-01
Rated 2 out of 5 by from Not a fan Will never buy another set. Terrible in the winter and the rain. Lose traction super easy during these conditions.
Date published: 2020-06-28
Rated 5 out of 5 by from Unstoppable Put these on your truck and it's like owning a tank. You can go anywhere! Deep snow, ice, slush, heavy rain, mud, silt, loose rock, rocky mountainous terrain... These tires have seen it all and they don't quit. Honestly, it's a rare occurrence to even use 4X4 in the snow because these handle it so well. This is the ultimate Rocky Mountain tire. I run these year-round with confidence they will perform well in whatever I run into. The road noise isn't too noticeable. Ride quality does suffer a tad, but that's to be expected when you go from a passenger tire to an E rated tire. It just seems more stiff, but the tire is stiffer by design, so it makes sense. I have put more than 20,000 miles on these and still have well more than 50% tread life remaining. I'll probably run them another 2 or 3 years and buy another set. I've tried several tires over the years and these are the best I have owned.
Date published: 2020-06-21
Rated 3 out of 5 by from Mixed Review I ran EXOs on my last Ram 2500, and was pretty well satisfied, so I had them installed on my 2019 3500 Dually at delivery, to get rid of the factory junk tires. They are not doing nearly as well on the dually, even though the alignment was checked, and the excessive factory toe-in was reduced immediately. The fronts are cupping pretty badly. A very irregular wear pattern on a brand new truck. This odd wear also causes the tire noise to go from the expected singing to an unbearable roar. All the good stuff like super tough sidewalls, and excellent stability when towing are still there. If the wear doesn't settle down after the most recent rotation, I will have to look elsewhere for my next set of tires. I am a long time Nitto/Toyo user, but this is pretty disappointing.
Date published: 2020-04-13
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NITTO: EXO GRAPPLER AWT

Size: LT275/55R20
MSPN: NITO-201320
Features:
  • Winter Performance
  • Sidewall Technology
  • Durable Compound
  • Dual Sidewall Designs
Benefits:
  • Rated with the 3-peak mountain snowflake for winter driving conditions, the Exo Grappler's sipes and large lateral grooves provide biting edges as well as water and snow/slush evacuation. These tread features are combined with a new durable compound that allows for traction in freezing temperatures. For additional traction, TSMI #15 studs can be added for increased winter traction.
  • The staggered shoulder blocks provide biting edges for off-road traction in loose dirt surfaces. The 3-ply sidewall with large sidewall lugs offer additional sidewall strength and puncture resistance.
  • A special mix of natural rubber, high strength polymers, and wear resistant materials aids cut and chip resistance on unpaved gravel roads.
  • Each Grappler has two sidewall designs so you can choose how your tires look. On the Exo Grappler one side has chisel-shaped sidewall lugs and the other has Y-shaped sidewall lugs.
Warranty:
  • Manufacturer's Limited
Quoted Price

Important note on quoted prices:

* PRICES QUOTED INCLUDE: Mounting, balancing, valve stems(excludes tpms) and alignment check. Prices may vary from one store to another or from one date to another. Tires listed may not be in stock at the identified store. Prices listed were received from individual stores and have not been verified by Big O Tires. Please call the Big O Tires Store of your choice for up-to-date information and details on pricing, additional charges and product availability.

Important note on quoted prices:

Speed Rating:

The speed rating is a measure of what speed the tire can safely maintain for sustained periods of time. A higher speed rating will generally indicate that you will have better control and handling characteristics. Speed rating standards are established by the U.S. Department of Transportation (DOT). Manufacturers assign speed ratings to tires after extensive performance testing. On the sidewall of every tire, you’ll find one of these speed rating codes:

M – Up to 81 mph
N – Up to 87 mph
P – Up to 93 mph
Q – Up to 99 mph
R – Up to 106 mph
S – Up to 112 mph
T – Up to 118 mph
H – Up to 130 mph
V – Up to 149 mph
W – Up to 168 mph
Y – Up to 186 mph
Z – (See Below)

What does ‘Up to 99 mph’ really mean?
Tires with a Q speed rating can safely sustain speeds of up to 99 miles per hour. The tire may be able to reach higher speeds, but traveling at speeds higher than 99 mph for any length of time would be unsafe - the tire is not designed to handle it.

What is a Z Rating?
For tires having a maximum speed capability above 149 mph, a Z rating may appear in the size designation ...above 186 mph, a Z rating must appear in the size designation, including a Y speed symbol in brackets.

A Few Tips About Speed Ratings…
Never mix tires with different speed ratings, as this may cause serious handling problems.

We don’t recommend downgrading the speed rating of your tires, as the vehicle manufacturer has done extensive testing to determine which tires match the various driving characteristics of the vehicle. However, if you are looking for better handling, there is generally no problem in moving up to a higher speed-rated tire.

Most importantly: Put safety first. The speeds shown are test speeds; they are not recommended speeds.

Temperature Rating:

A comparative grade based on the tire’s resistance to heat and its ability to dissipate heat, again as measured under controlled conditions. The grades, from highest to lowest, are designated A – B – C. An A-rated tire is the coolest running, while a C-rating meets the minimum federal performance standards. These temperature grades are set based on a tire that is properly inflated and not overloaded.

Traction Grade:

A comparative grade based on the tire’s ability to stop on wet pavement, again as measured under controlled conditions on wet asphalt and concrete surfaces. The grades, from highest to lowest, are designated AA – A – B – C. A tire that is graded AA should have better traction or stopping performance than a tire with a lower grade, based on the specific straight-ahead braking tests.

Treadwear Grade:

A comparative grade based on the actual wear of the tire’s tread when tested under specific controlled conditions. All tires are tested under the same conditions to allow for comparison between manufacturers and between different lines of tires from the same manufacturer. The system is fairly easy to understand. A tire with a treadwear grade of 400 should have a useful tread life approximately twice as long as a tire with a treadwear grade of 200. The higher the grade, the better the expected treadwear.

Looking for new tires with optimal traction? Or are long-lasting treads a bigger priority? There’s a simple way to compare tire specs!

The Uniform Tire Quality Grading (UTQG) system was developed by the Department of Transportation (DOT) to assist consumers in the purchase of their tires by providing a standard grading system used by all tire manufacturers. Tire manufacturers use the UTQG system to grade their tires in three important areas: treadwear, traction and temperature. The UTQG grade for each tire is shown on the paper label affixed to the tire and is also molded in the sidewall.

Treadwear Grade – A comparative grade based on the actual wear of the tire’s tread when tested under specific controlled conditions. All tires are tested under the same conditions to allow for comparison between manufacturers and between different lines of tires from the same manufacturer. The system is fairly easy to understand. A tire with a treadwear grade of 400 should have a useful tread life approximately twice as long as a tire with a treadwear grade of 200. The higher the grade, the better the expected treadwear.

Traction Grade – A comparative grade based on the tire’s ability to stop on wet pavement, again as measured under controlled conditions on wet asphalt and concrete surfaces. The grades, from highest to lowest, are designated AA ABC. A tire that is graded AA should have better traction or stopping performance than a tire with a lower grade, based on the specific straight-ahead braking tests.

Temperature Grade – A comparative grade based on the tire’s resistance to heat and its ability to dissipate heat, again as measured under controlled conditions. The grades, from highest to lowest, are designated ABC. An A-rated tire is the coolest running, while a C-rating meets the minimum federal performance standards. These temperature grades are set based on a tire that is properly inflated and not overloaded.

UTQG is a great way to compare tires from various manufacturers and between specific lines from the same manufacturer. Remember: The UTQG isn’t a safety rating and it doesn’t guarantee a tire’s mileage performance - but you can use the UTQG in conjunction with price, warranty, appearance and recommendations to make the right tire choice for your needs. If you have any questions about UTQG or various tire lines, the Big O Tires team is always ready to help!

Hauling groceries – or bricks? The Load Rating or Load Index indicates how much weight each tire can safely support.

Every tire’s load rating is stamped into its sidewall. Once you know the load rating, you can use the chart below to determine the amount of weight that one tire can support. Then just multiply the weight by four - or the number of wheels on your vehicle - to determine your vehicle’s maximum load-carrying capacity.

Load Rating Table

Sometimes the maximum load (for example, 1060 kg) will be stamped into the sidewall so that you don't have to decipher the load rating. Remember: never install tires with a lower load-carrying capacity than the tires that were installed on your vehicle by the manufacturer!

Load Range:

The load rating is a measure of the tire's strength — its ability to hold air pressure under load.

The load rating influences the sidewall strength of a vehicle tire. If a tire has a load rating that is too low, the handling of the vehicle could become unstable as the sidewall buckles under the vehicle's weight. Conversely, a much higher load rating than needed can dramatically harshen ride quality.

The recommended load rating for a vehicle's tires can be found in its owner's manual. It is also normally affixed to a sticker located on one of the vehicle's door jams. If you are replacing tires supplied with the vehicle from the manufacturer, the load rating written on the tires is an appropriate guide.

Sidewall:

There are other codes on some tires that provide you with additional information, some of which are specific to light truck tire applications. Some of the other codes that you might find on your tires include:

LT = Stands for light truck application. Example: LT235/85R16
C, D or E = Load range indication for light truck applications
REIN = Reinforced
OWL = Outlined White Letters
RWL = Raised White Letters
ORWL = Outlined Raised White Letters
B, BLK, BW, BSW = Blackwall or Black Sidewall
W, WW, WSE – Whitewall or White Sidewall
XNW = Extra Narrow White Width
XL = Extra Load Capacity

Section Width:

The linear distance between the outside sidewalls of an inflated tire without any load (exclusive of protruding side ribs and decorations).

Sidewall Aspect Ratio:

The ratio between tire height and width.

Important note on quoted prices:

Prices quoted do not include additional charges for sales taxes, mounting and balancing, valve stems, tire disposal fees, state recycling fees, tire protection plans and other charges. Prices may vary from one store to another or from one date to another. Tires listed may not be in stock at the identified store. Prices listed were received from individual stores and have not been verified by Big O Tires. Please call the Big O Store of your choice for up-to-date information and details on pricing, additional charges and product availability.

How Are Tire Sizes Specified?
The first number describes width of the tire (section), the second number describes the aspect ratio (profile), and the third number the wheel diameter (rim size).
Alignment makes a big difference in how long tires last, how much gas you use, and steering and safety. When you buy new tires, we'll make sure they're properly aligned with a free alignment check!

What is TPMS?


TPMS is an electronic system that monitors the air pressure in your tires and alerts you when they are under- or over-inflated. Proper tire inflation not only boosts your safety, but also the life of the tire and its fuel economy.

TPMS

Some components of the TPMS sensor may need to be replaced due to wear and corrosion over time. Our TPMS rebuild kit includes all the necessary parts to service your TPMS sensor and keep this important safety feature functioning properly.

About TPMS

Protect Your Purchase!

Have you considered our Tire Protection Package?

Available with purchase of new, non-Big O brand tires, TPP includes the following comprehensive coverage:


  • 3-Year Full Free Repair or Replacement Road Hazard

  • 3-Year Full Free Replacement Workmanship & Materials

  • 3-Year Free 24/7 Flat Tire Change

  • Limited Lifetime Prorated Repair
    or Replacement Coverage

  • Free Rotations and Rebalance for the Useful Life of Tire

  • Limited Mileage Warranty

Tire Protection ... On Us!


Your Big O brand tire purchase includes our Tire Protection Package, free of charge. Protection includes complimentary rotations and rebalances for the life of the tire, as well as 24-hour Roadside Assistance, available nationwide. Plus, we'll repair, replace or refund your tire in the event that it is damaged, free of charge for 3 years (pro-rated after).

TPMS

Drive away with confidence and peace of mind. We've got you covered. See Tire Warranty terms for details.

Protect Your Investment!


Available with the purchase of qualifying new tires, our Tire Protection Package provides comprehensive coverage you can count on. It includes complimentary rotations and rebalances for the life of the tire, as well as 24-hour Roadside Assistance, available nationwide. Plus, we'll repair, replace or refund your tire in the event that it is damaged, free of charge for 3 years (pro-rated after).

TPMS

Add TPP to your purchase today, and drive away with confidence and peace of mind. We've got you covered. See Tire Warranty terms for details.

Rim Diamter:

The wheel diamter (rim size).