AT Tires

[1engineer]

I won't re-hash all of the advantages of getting new tires. My original Bridgestones lasted 32K and were getting very worn. I could have gotten realistically 3-5K more but that would have been taking it into the danger territory.

I decided on the Cooper Discoverer AT3. I kept the stock size and passenger rating. I do not need nor want a lift and P is just fine for my off roading. I do not rock crawl or anything.
There have been a few on here that have purchased them and Okki has the ATP. I drove 475 miles with them on a trip this past Sunday. Very quiet and handles well on the interstate. I took them off road Sunday night for about a mile. It was not too muddy but enough to put it in 4H. The tires, as expected were superior to stock. All in all I am happy with performance and definitely happy at the price which was less than $750.00 out the door including 6% sales tax.

Anyway, here are a few pics.

 

[Gstick]

I have been running the same tire except it is an LT 265/70/17 Load Range C. I have 10,000 + miles on them now, and I like them very much. But getting them balanced properly has been somewhat of a chore. My local Toyota dealer has a Road Force machine, but unfortunately no one there knows how to use it. (they did these tires twice, and the steering wheel shook terribly both times) The local tire shop where I purchased them from, does not have a RF machine, and needless to say, the 2 times they attempted to balance were terrible. Finaly found a shop about 5 miles from where I work, (Bruce Bros Tire) and they know how to use the Road Force balancer correctly. The tires are wearing like iron, and corner very well on wet roads.

 

[CITADEL96]

I won't re-hash all of the advantages of getting new tires. My original Bridgestones lasted 32K and were getting very worn. I could have gotten realistically 3-5K more but that would have been taking it into the danger territory.

I decided on the Cooper Discoverer AT3. I kept the stock size and passenger rating. I do not need nor want a lift and P is just fine for my off roading. I do not rock crawl or anything.
There have been a few on here that have purchased them and Okki has the ATP. I drove 475 miles with them on a trip this past Sunday. Very quiet and handles well on the interstate. I took them off road Sunday night for about a mile. It was not too muddy but enough to put it in 4H. The tires, as expected were superior to stock. All in all I am happy with performance and definitely happy at the price which was less than $750.00 out the door including 6% sales tax.

Anyway, here are a few pics.

What are the dimensions on those? 265 or 275? What's the widest you can go without spacers? Like you, I don't rock crawl, I just do some dirt roads and fields occasionally. I don't have a need for a lift kit, but want to get rid of the soccer mom look and make it all terrain friendly.

 

[gray street]

Did you desire owl?

 

[Antman]

I kept the stock size and passenger rating....

What are the dimensions on those? 265 or 275?

Um.......

 

[eggbeater]

Thanks for the review/pics...I'm trying to decide now what I'll replace the stockers with when they wear out.

I'll more than likely end up with a leveled front end and these look like they'll fit the bill nicely.

They're certainly now on the finals list.

Best!

 

[CITADEL96]

Um.......

Some of these boards show 265 or 275 for "stock" all terrain tires. As a matter of fact, from looking at several of the threads and doing some reasearch, the "stock" tires are 265/70-17 OR 245/60-20's.....So, you could possibly have a 275 tire on a stock rim depending on the aspect ratio. The problem stated in the other threads is that it could rub......

UM.....

 

[Antman]

Some of these boards show 265 or 275 for "stock" all terrain tires. As a matter of fact, from looking at several of the threads and doing some reasearch, the "stock" tires are 265/70-17 OR 245/60-20's.....So, you could possibly have a 275 tire on a stock rim depending on the aspect ratio. The problem stated in the other threads is that it could rub......

UM.....

He posted he "kept the stock size". Not a lot of room for confusion there, I should think.

 

[CITADEL96]

He posted he "kept the stock size". Not a lot of room for confusion there, I should think.

Ok, well they look wider than the "stock" 265/70-17's......

P.S.:

http://ssl.delti.com/cgi-bin/rshop....s=Ordern&typ=R-204784&ranzahl=4&nichtweiter=1

 

[Okki]

The ATP has a little more aggressive shoulder. So far I love these tires in the rain.
TRD Rims, Discoverer ATP LT265/70R17.

Okki

 

[rebelbowtie]

The ATP has a little more aggressive shoulder. So far I love these tires in the rain.
TRD Rims, Discoverer ATP LT265/70R17.

Okki

those look like Zeon LTZ

 

[philsey]

Nice writeup, but, um, like, no analysis?, no graphs?, no air vs nitrogen thoughts?, no calculation of lug profile on mpg?, no noise analysis?

Arright, who are you and what have you done with 1E?

 

[gray street]

Nice writeup, but, um, like, no analysis?, no graphs?, no air vs nitrogen thoughts?, no calculation of lug profile on mpg?, no noise analysis?

Arright, who are you and what have you done with 1E?

earlier today he thought a gallon of fuel weighted 14 lbs lol

 

[Ramzey28]

I have been running the same tire except it is an LT 265/70/17 Load Range C. I have 10,000 + miles on them now, and I like them very much. But getting them balanced properly has been somewhat of a chore. My local Toyota dealer has a Road Force machine, but unfortunately no one there knows how to use it. (they did these tires twice, and the steering wheel shook terribly both times) The local tire shop where I purchased them from, does not have a RF machine, and needless to say, the 2 times they attempted to balance were terrible. Finaly found a shop about 5 miles from where I work, (Bruce Bros Tire) and they know how to use the Road Force balancer correctly. The tires are wearing like iron, and corner very well on wet roads.

How much steefier do they drive? How load? I wonder if the ATP are alot louder or the same? I like these and the Firestone dest. Ats

 

[Bay33saw]

Looks good.

 

[UFG8R Runner]

I hereby object to 1Engineer's review on the grounds that it is uncharacteristically non-mathematic.

1Engineer, please restate your review in the form of an equation. :nerd:

Thank you.

 

[1engineer]

There is a reason I wrote a very generic review on these tires. Simply put, most tire data is subjective without access (skid pads, chemical analysis, etc) to proper tools. Again, everyone knows what opinions are like and tire Q&A is mostly opinion.

Based on all my research, this was the tire I wanted. You guys have to remember I have been around longer than some of you (except Philly he is a few weeks older lol) and I have bought a LOT of tires over the years.
I have had: P rated tires, C rated tires, E rated tires. I have had the Silent Armors and the All Terrain TA KO's and Michelin LTXAT2's and the Tripletreds. If I want to go back to the era where I was running around with lifted trucks and running 35's then I can go into the pros and cons of **** Cepek tires.

The tires I considered before I bought the Coopers were:
1. Michelin LTX/AT
2. BFG All Terrain TA
3. Goodyear Silent Armor
4. Firestone Destination AT.
5. Cooper Discoverer AT3

I have owned three of the five tires in the past and a few multiple times, so I knew from personal experience how they wore and performed. I have also owned Cooper Discoverers in the past but not this particular tire as it is fairly new.
Buying new tires is the largest purchase most of us will do for a vehicle excluding the cost of the vehicle itself so doing research beforehand and determining individual need is very important. Has anyone ever wondered why there are so many tire types and brands out there?

So, I did research. Lots of it. My needs are simple: A good tire that handles lots of interstate driving as well as logging and mining sites and roads (for work) and getting my mtn bike to the trails for play in rain or snow. I drive 30K/yr so I like to get close to two years out of a tire. This is how I determined the list of the five tires above. The Cooper (for me) seemed to have the best design for my needs. The tire I purchased:
Cooper Discoverer AT3 in size P265-70-17

Performance:
So far I have driven about 600 miles with 90% of that interstate driving. Here are my impressions:
1. Body roll on medium to high speed turns has declined somewhat.
2. No additional noise at speed than OEM tires.
3. Braking is fine.
4. Nosedive has not completely gone away but is much less noticable.
5. Gas milage for interstate driving is about the same so far. It will take several months to determine if these tires reduce mpg. I calculate lifetime mpg to take out as many variables as possible. New tires are a milestone and I will report back when data is available.
6. Mud traction is much better than stock tires. I have only driven about a mile off road but traction is improved and the tread seemed to clear just fine.
7. The "look" of the tire is not as important to me as performance but I have gotten a lot of compliments since I put these tires on the 4Runner. It does improve the looks of the vehicle in my opinion.
8. The tires ride very smoorh on interstate. My wife was with me on my trip this weekend and even she commented on the smooth ride.

"C" or "E" rated tires would have improved the cornering and nosedive issue even more but I was not willing to sacrifice ride quality and efficiency. These tires did definitely help in both areas though.

Now, to address the tread width, not to be confused with section width. If I measure across the tread I get about 8 3/4". I measured the tread width on my OEM spare and it was about 7 5/8". So my new tires are over an inch wider across the tread. It is difficult to determine the exact tread width on a tire as the radius of the shoulder rolls into the sidewall. I measured to the middle of the radius.

As most of you know I favor function over form. That is not to say that whenever function is not compromised form will take precedence. This is why I put the white letters out lol. I like white letters out on some vehicles.
I hope this helps some of you guys looking to buy new tires and answers some questions. No equations just a lot of careful consideration.

 

[Antman]

If you look closely at the sidewalls, there are little arrows that indicate the tread width. From the inside sidewall arrow to the outside sidewall arrow will be 265mm. Just keepin it real, bro!

Thanks for the tire rundown!

 

[1engineer]

If you look closely at the sidewalls, there are little arrows that indicate the tread width. From the inside sidewall arrow to the outside sidewall arrow will be 265mm. Just keepin it real, bro!

Thanks for the tire rundown!

Section width not tread width. My new tire has a tread width of 8.75". It has a section width of 265mm or 10.43". Manufacturers do not usually state tread width.

 

[Antman]

Section width not tread width. My new tire has a tread width of 8.75". It has a section width of 265mm or 10.43". Manufacturers do not usually state tread width.

^^^^wrong. 265mm Tread Width. Measure between the imprinted arrows.