Cooper Discoverer S/T Maxx All Terrain LT285/75R17 121/118Q E Light Truck Tire
Cooper Discoverer S/T Maxx All Terrain LT285/75R17 121/118Q E Light Truck Tire
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Cooper Discoverer S/T Maxx All Terrain LT285/75R17 121/118Q E Light Truck Tire

4.5 stars out of 399 reviews
(4.5)|
399 ratings
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Key item features

  • Commercial Application: Designed for use on light trucks in commercial applications, suitable for rough gravel, mud, dirt, sand, snow, and pavement.
  • Winter Traction: Pre-drilled for easy installation of studs, where permitted, for extra traction in extreme winter weather conditions.
  • Robust Construction: ArmorTek3 construction increases stability, durability, and load carrying capacity with two 90-degree radial body plies, a third bias ply, two steel belts, and a nylon layer.
  • Self-Cleaning Tread: High void ratio tread with stone ejectors and sipes promotes self-cleaning for consistent traction and protects the casing from damage.
  • Durable Compound: Damage-resistant tread compound guards against cuts, chips, abrasions, and other damage for a longer tread life.
  • Specific Dimensions: Features a size of LT285/75R17 and a Load Range E, with a 121/118Q rating.
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Current price is $436.99
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4.5 out of 5 stars
stars399 ratings380 reviews
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Reviews summary

Pros
  • : Provides stable towing at max inflation and weights.
  • : Offers good performance and quality at this cost.
  • : Tire produces low noise levels, even at high speeds.
  • : Tires have an aggressive tread pattern.
  • : Provides good grip and control in snowy conditions.
Neutral
  • : Can be long-lasting, but may wear out quickly depending on usage.
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Showing 1-3 of 380 reviews

Oct 24, 2025
Sis
5 out of 5 stars review

Verified Purchase

Truck tires

Hard to find this tire anywhere! Difficulty ordering as you can't order or pay in store. Once your appointment is set… it's set. Wait time much longer than expected but employees very professional. Would recommend!!

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Aug 12, 2020
Nick
5 out of 5 stars review

Seller Verified Purchase

This is my second set of st maxx's that I've had on my Tacoma and I don't think I could ever run anything else. I had a 33 before with 40k miles on them and only changed because I wanted 35s. The fact that it's an "all terrain" so it keeps the sipes for wet traction and doesn't eject the snow for snow on snow traction in the winter makes this one of the best tires in my opinion. Durable as hell I take these on tough tracks from blacks at rausch creek offroad park and harsh class 4s in VT that would slice through any other tire, the Kevlar reinforcement is tough! That being said they are a heavy tire, the 33 was a load range e but the 35s are d so it hasn't really changed drastically going up in size for me. Road noise doesn't start bad but you'll really start it to hear it once they break in, nothing awful but having a conversation on the highway with the radio down and you'll know it's there. Expect amazing traction on and offroad in all conditions from rock crawling, snow, rain, just maybe not mud. For that you'll want the lockers on and to floor it. Just expect that mpg to tank as a sacrifice for the traction.

Review from simpletire.com
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Jun 3, 2021
Paul
5 out of 5 stars review

Verified Purchase

Initial thoughts.

I have only recently acquired these tires. They are mounted on 16x8 Cragar Soft Eights on an 03' Z71 Tahoe with a leveling torsion key lift. I have a complete new front and rear suspension with an alignment done also. I have apx. 400 miles of highway driving so far on them at speeds up to and sustained at 70mph. The tire noise is minimal, the grip and response thru the steering wheel is excellent. In a couple of months I will be towing a boat weighing abut 3400 lbs thru the Adirondack mountains in upstate NY plus using the truck in the sand, mud and gravel in the Gamelands of NC. I will give an update at that time. No rain driving as of yet.

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