Head-to-head Updated

Cooper Discoverer SRX vs Cooper Discoverer AT3 LT — Compared

Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 0 + 0 road tests and 340 + 251 owner reviews. How we score

Too close to call: Discoverer SRX 76, Discoverer AT3 LT 77.

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Cooper Discoverer SRX
Tire ACooper

Discoverer SRX

Premium Touring All Season tire

± 7

Tests – · none yet Owners 78 · 340 reviews

“I’ve had Cooper Discoverer SRX (all-season) with good experience.”

Cooper Discoverer AT3 LT
Tire BCooper

Discoverer AT3 LT

All-Terrain tire

± 7

Tests – · none yet Owners 81 · 251 reviews

“I ran a set of 295/70r18 Discoverer AT3 LT’s for about 25k miles. I had seen lots of negative reviews but figured that I would be OK with them for my needs ( I drive in snow 4 - 5 times per year). Initially I was happy with the tires as they performed well in the snow and the rain but after 10k miles they developed a balance issue and started to wear irregularly. I had never experienced anything like it before. I actually purchased new shocks but never installed them. As I drive a lot of miles I just never had any time to deal with chasing the vibration / balance issue and just replaced the tires with Bridgestone Dueler AT Ascent. I now have about 20k miles on the Bridgestone’s and they are still ride very smooth and are wearing great.”

Category by category

Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.

  1. 79

    Dry

    Discoverer AT3 LT +1
    80
    Why this score
    SourceDiscoverer SRXDiscoverer AT3 LT
    Professional tests (TWG score)≈ 75 (est.)≈ 76 (est.)
    Reviews found online8486

    Discoverer SRX: 60% × 74.8 (est.) + 40% × 84.1 = 79

    Discoverer AT3 LT: 60% × 75.8 (est.) + 40% × 86.4 = 80

    No road tests of dry for Discoverer SRX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).

    No road tests of dry for Discoverer AT3 LT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).

  2. 81

    Wet

    Discoverer AT3 LT +1
    82
    Why this score
    SourceDiscoverer SRXDiscoverer AT3 LT
    Professional tests (TWG score)≈ 79 (est.)≈ 79 (est.)
    Reviews found online8586

    Discoverer SRX: 60% × 78.8 (est.) + 40% × 85.2 = 81

    Discoverer AT3 LT: 60% × 79.1 (est.) + 40% × 85.9 = 82

    No road tests of wet for Discoverer SRX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

    No road tests of wet for Discoverer AT3 LT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. 69

    Snow

    Discoverer AT3 LT +5
    74
    Why this score
    SourceDiscoverer SRXDiscoverer AT3 LT
    Professional tests (TWG score)≈ 70 (est.)≈ 73 (est.)
    Reviews found online6877

    Discoverer SRX: 60% × 69.8 (est.) + 40% × 68.2 = 69

    Discoverer AT3 LT: 60% × 73 (est.) + 40% × 76.6 = 74

    No road tests of snow for Discoverer SRX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).

    No road tests of snow for Discoverer AT3 LT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).

  4. 74

    Comfort

    Level
    74
    Why this score
    SourceDiscoverer SRXDiscoverer AT3 LT
    Professional tests (TWG score)≈ 71 (est.)≈ 71 (est.)
    Reviews found online7777

    Discoverer SRX: 40% × 70.6 (est.) + 60% × 77.1 = 74

    Discoverer AT3 LT: 40% × 70.5 (est.) + 60% × 76.6 = 74

    No road tests of comfort for Discoverer SRX or Discoverer AT3 LT. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 70

    Noise

    Discoverer AT3 LT +2
    72
    Why this score
    SourceDiscoverer SRXDiscoverer AT3 LT
    Professional tests (TWG score)≈ 67 (est.)≈ 67 (est.)
    Reviews found online7481

    Discoverer SRX: 60% × 66.6 (est.) + 40% × 74.3 = 70

    Discoverer AT3 LT: 60% × 66.6 (est.) + 40% × 80.6 = 72

    No road tests of noise for Discoverer SRX or Discoverer AT3 LT. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 70

    Treadwear

    Discoverer AT3 LT +4
    74
    Why this score
    SourceDiscoverer SRXDiscoverer AT3 LT
    Professional tests (TWG score)≈ 68 (est.)≈ 71 (est.)
    Reviews found online7379

    Discoverer SRX: 60% × 68.4 (est.) + 40% × 72.7 = 70

    Discoverer AT3 LT: 60% × 70.6 (est.) + 40% × 79 = 74

    No road tests of treadwear for Discoverer SRX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).

    No road tests of treadwear for Discoverer AT3 LT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).

  7. 77

    Handling (owners)

    Discoverer SRX +6
    71
    Why this score
    SourceDiscoverer SRXDiscoverer AT3 LT
    Reviews found online7771
Scores at a glance
Cooper Discoverer SRX vs Cooper Discoverer AT3 LT: scores by category (0–100)
CategoryCooper Discoverer SRXCooper Discoverer AT3 LT
Relative Score 76 77
Dry 79 80
Wet 81 82
Snow 69 74
Comfort 74 74
Noise 70 72
Treadwear 70 74
Handling (owners) 77 71

Higher is better. The Relative Score follows your weights below; category scores do not change.

Weight the categories that matter to you

Wet grip starts at “Important”. Treadwear starts at “Neutral” here: road tests measured it for at most one of the two tires, so it rests on owner reviews. Move the sliders and the scores update instantly.

Important
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Neutral
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Less important
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Neutral
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Recomputed
Headline score
± 7

Discoverer SRX

± 7

Discoverer AT3 LT

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A Discoverer SRX

Pros

  • Exceptional wet and winter weather traction (rain, slush, and snow)
  • Smooth and comfortable highway ride quality
  • Low road noise levels compared to stock or competing tires

Cons

  • Some users reported higher-than-average road noise or humming
  • Occasional tendency to wander or track on grooved pavement
  • A few reports of shorter tread life than advertised by isolated users
All owner themes in the Discoverer SRX review

Tire B Discoverer AT3 LT

Pros

  • Excellent towing stability with minimal sidewall flex under heavy loads
  • Surprisingly quiet and smooth on the highway for an all-terrain tire
  • Strong durability and wear resistance on rough gravel, rock, and dirt roads

Cons

  • Subpar performance in heavy snow, ice, or deep mud for some users
  • Occasional reports of balancing difficulties or initial cold-weather tire thumping
  • Isolated incidents of sidewall splitting or premature wear
All owner themes in the Discoverer AT3 LT review

What real owners are saying

From Reddit, forums and review threads. Not part of our score

Tire A

Cooper Discoverer SRX

Positive

Community sentiment for the Cooper Discoverer SRX is overwhelmingly positive, with drivers consistently highlighting its quiet ride, comfortable handling, and dependable all-season traction. Many users report unexpectedly competent performance in light snow and winter conditions, along with favorable pricing compared to competitors like Michelin. Tread life feedback is generally solid, though at least one owner noted shorter longevity than expected.

r/tires ·1 upvote ·2026-06-03

“Cooper tires similarities Is the discoverer crossrange the new discoverer srx? I’ve had probably 4-5 sets of srx between current and previous cars and they all look exactly like this. Google says they are completely different tires but in terms of looks they are absolutely identical. 🤔”

jeepgarage.org ·2015-12-27

“My wife is using the SRX in her 13' Explorer and so far I love them. Great stability, quiet, no hydro planing. Will update once get some snow in them. Sent from my iPhone using JeepGarage”

r/Subaru_Outback ·1 upvote ·2020-12-21

“Tire recommendations that are lighter than Wildpeaks BLUF: Looking for an off-road capable tire (225/65R17) that doesn't weigh as much as a Falken Wildpeak. I'm aware off-road tires weigh more by design -- beefy treads, blocks, and sidewalls come at a cost weight-wise. That much I understand. That said, Falken Wildpeaks (30 lbs), Geolandar A/T G015s (30.3 lbs), Toyo Open Country A/T III (32 lbs) and even something more mild like a Cooper Discoverer SRX (31 lbs) represent a nearly 25% increase in rotational mass (I think that is the correct term) over the stock Dueler H/P Sport AS tires, and therefore will drag down MPGs and wear on the drivetrain a bit more over time. Is anyone aware of AT or AT-style tires that are fairly close to the OEM tire weight? Did anyone else shopping for tires take weight into account? I'm not in need of something super aggressive, but I do like to take on mild to moderate trails at the local OHV park, as well as the occasional dirt road overloading trip. The Pirelli Scorpion All Terrain Plus is at least under 30 at 29 lbs, as is the 28 lbs Cooper Discoverer EnduraMax which integrates "all-terrain tire technology" according to the TireRack page. And the Firestone Destination LE 2 only weighs 24 lbs, and the LE 3 is 23 lbs. but I'm not sure how off-road capable those tires are. Thank you, this has been my Ted Talk. Read more”

Top themes
#quiet and comfortable ride#winter and snow traction#treadwear and longevity#value and pricing#all-season performance#comparison to Michelin Defender

Based on 28 community posts

Tire B

Cooper Discoverer AT3 LT

Mixed

Community sentiment regarding the Cooper Discoverer AT3 LT is mixed with a positive lean. Drivers appreciate its wet and snow traction, low noise, and strong tread life under heavy loads, though some report irregular wear and persistent balancing or vibration issues after accumulating mileage.

wanderthewest.com ·2020-07-08

“I have the Cooper Discoverer AT3 LT tires on my 2010 Tundra with Hawk. They are E series tires. Found this link that discusses the differences between the LT and XLT. Really like my LT's. The increased tire mileage would probably be a good thing of the price difference isn't too great. Paul”

clubfrontier.org ·2 upvotes ·2023-02-26

“I got 80k (rotating every 10k) out of Coopers on my 2010 and have 40k on current 2019 SL ... Discoverer AT3 LT ... they are designed for heavier trucks... excellent noise, excellent in water. I got stuck in a grass field in the factory HT hancocks... same field few years later with coopers.. no issues.. never tried in snow but imagine they would do well...”

forum.ih8mud.com ·1 upvote ·2018-07-29

“From the Cooper site: Discoverer A/T3 55,000 Mile Treadwear Protection - Light Truck sizes 60,000 Mile Treadwear Protection - SUV sizes The Discoverer A/T3™ is an all-season, all-terrain tire designed to perform well on the highway and off for drivers of SUVs and light duty trucks. Excellent highway performance Excellent wet traction Improved treadwear and traction in rocky and gravel terrain M+S Rated Discoverer AT3 LT 60,000 Mile Treadwear Protection - LT-metric sizes The Discoverer AT3 LT™ with Durable Tread Technology™ hauls heavy loads with less wear and are built to withstand ongoing assault from dirt and gravel. Designed to prevent shredding on rocky and gravel terrain Extreme durability for hauling Superior control and braking in wet weather Cutting through the marketing-speak, it sounds like the A/T3 is more road biased and the AT3 LT is perhaps heavier duty and more offroad biased. And the AT3 LT is not rated for winter conditions. I've had Discount Tire try to feed me a load of BS on more than one occasion. It sounds like that's what they were doing to you. The A/T3 is definitely still available.”

Top themes
#Wet traction performance#Treadwear and longevity#Heavy load handling#Balancing and vibration#Snow traction capability

Based on 5 community posts

Specs side by side

Attribute A · Cooper Discoverer SRX B · Cooper Discoverer AT3 LT
CategoryPremium Touring All Season tireAll-Terrain tire
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available314
Rim diameters16″ – 20″16″ – 18″
Tread depth10 - 13/32″16 - 17/32″
UTQG600 - 740 A A - B—
Treadwear warranty—60,000 mi
SidewallBlack Side Wall - Raised Outline White LetteringBlack Side Wall - Raised Outline White Lettering
Max pressure44 - 50 psi50 - 80 psi
Sizes in common00

Which one should you actually buy?

Cooper Discoverer SRX

Cooper Discoverer AT3 LT

Too close to call: Cooper Discoverer SRX and Cooper Discoverer AT3 LT are within 2 points overall. Cooper Discoverer SRX is stronger on handling. Cooper Discoverer AT3 LT is stronger on snow and treadwear.

Pick tire A You enjoy sharp, responsive handling

Cooper Discoverer SRX scores 77 vs 71 on handling.

Pick tire B You drive through snowy winters

Cooper Discoverer AT3 LT scores 74 vs 69 on snow.

Pick tire B You want the longest tread life

Cooper Discoverer AT3 LT scores 74 vs 70 on treadwear.

Tire A · Cooper Discoverer SRX
Tire B · Cooper Discoverer AT3 LT

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Discoverer SRX or Discoverer AT3 LT?

Which is better in the wet, Discoverer SRX or Discoverer AT3 LT?

Neither, by our numbers: 81 vs 82 on the wet score, within 3 points.

Which grips better on dry roads, Discoverer SRX or Discoverer AT3 LT?

Neither, by our numbers: 79 vs 80 on the dry score, within 3 points.

Which is better in snow, Discoverer SRX or Discoverer AT3 LT?

Cooper Discoverer AT3 LT, 74 vs 69 on our snow score.

Which is quieter, Discoverer SRX or Discoverer AT3 LT?

Neither, by our numbers: 70 vs 72 on the noise score, within 3 points.

Which is more comfortable, Discoverer SRX or Discoverer AT3 LT?

Neither, by our numbers: 74 vs 74 on the comfort score, within 3 points.

Which lasts longer, Discoverer SRX or Discoverer AT3 LT?

Cooper Discoverer AT3 LT, 74 vs 70 on our treadwear score.

How do we compare tires?

Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements), each result compared with every other tire in the same test and newer tests counting more. 40% comes from owner reviews found online, adjusted for how generously each site rates. Both use one scale: the average tested tire gets 70, the best 100. When a tire has only one of the two, the missing half is estimated from the other and the score stays closer to average; with no road test and fewer than five owner reviews it gets no score yet.

Handling is the exception: road tests measure it inside the dry and wet scores, so its own row comes from owner ratings only and starts as less important.

Community buzz from Reddit and forums is shown for context only — it never changes the score. Full methodology