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 + 2 road tests and 340 + 164 owner reviews. How we score
Discoverer SRX is ahead, 75–65
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Tests – · none yet Owners 78 · 340 reviews
“Still good? Set of 2019 May Cooper Discoverer SRX Bought and installed these on May 09, 2019. They seem to be in good condition still with plenty of tread left. Photo order is back left tread, back left face, front left, front right, back right.”
Tests 55 · 2 tests Owners 75 · 164 reviews
Best test result: #2 of 9 in 2024 Tire Rack Highway All Season Tyre Test (dry circle)
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Discoverer SRX | Crugen HT51 |
|---|---|---|
| Professional tests (TWG score) · – / 1 tests | ≈ 75 (est.) | 58 |
| Reviews found online | 84 | 76 |
Discoverer SRX: 60% × 74.6 (est.) + 40% × 83.8 = 78
Crugen HT51: 60% × 58.2 + 40% × 75.9 = 65
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).
| Source | Discoverer SRX | Crugen HT51 |
|---|---|---|
| Professional tests (TWG score) · – / 1 tests | ≈ 79 (est.) | 60 |
| Reviews found online | 85 | 78 |
Discoverer SRX: 60% × 78.5 (est.) + 40% × 84.9 = 81
Crugen HT51: 60% × 59.5 + 40% × 78.1 = 67
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).
| Source | Discoverer SRX | Crugen HT51 |
|---|---|---|
| Professional tests (TWG score) · – / 1 tests | ≈ 70 (est.) | 36 |
| Reviews found online | 68 | 70 |
Discoverer SRX: 60% × 69.7 (est.) + 40% × 67.7 = 69
Crugen HT51: 60% × 35.8 + 40% × 69.7 = 49
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 0.32).
| Source | Discoverer SRX | Crugen HT51 |
|---|---|---|
| Professional tests (TWG score) | ≈ 70 (est.) | ≈ 69 (est.) |
| Reviews found online | 76 | 70 |
Discoverer SRX: 40% × 70.3 (est.) + 60% × 76.4 = 74
Crugen HT51: 40% × 69.1 (est.) + 60% × 70.4 = 70
No road tests of comfort for Discoverer SRX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
No road tests of comfort for Crugen HT51. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
| Source | Discoverer SRX | Crugen HT51 |
|---|---|---|
| Professional tests (TWG score) | ≈ 66 (est.) | ≈ 66 (est.) |
| Reviews found online | 74 | 79 |
Discoverer SRX: 60% × 66.3 (est.) + 40% × 74 = 69
Crugen HT51: 60% × 66.3 (est.) + 40% × 79 = 71
No road tests of noise for Discoverer SRX or Crugen HT51. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.
| Source | Discoverer SRX | Crugen HT51 |
|---|---|---|
| Professional tests (TWG score) · – / 1 tests | ≈ 69 (est.) | 58 |
| Reviews found online | 73 | 76 |
Discoverer SRX: 60% × 68.9 (est.) + 40% × 73 = 71
Crugen HT51: 60% × 58.4 + 40% × 76.4 = 66
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 0.36).
| Source | Discoverer SRX | Crugen HT51 |
|---|---|---|
| Reviews found online | 76 | 74 |
| Category | Cooper Discoverer SRX | Kumho Crugen HT51 |
|---|---|---|
| Relative Score | 75 | 65 |
| Dry | 78 | 65 |
| Wet | 81 | 67 |
| Snow | 69 | 49 |
| Comfort | 74 | 70 |
| Noise | 69 | 71 |
| Treadwear | 71 | 66 |
| Handling (owners) | 76 | 74 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
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.
Discoverer SRX
Crugen HT51
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
From Reddit, forums and review threads. Not part of our score
The community views the Cooper Discoverer SRX as a quiet, comfortable, good-value all-season CUV/light-truck tire. Owners often report better-than-expected snow traction, stable handling and good wear, with several users recommending it over the Cooper CS5 and Michelin alternatives on price. A few reservations appear: one owner got only about 40,000 miles, and its weight (about 31 lbs) was noted in a lighter-tire discussion.
“I have used the Cooper Discoverer SRX, the Cooper AT3 4S and Michelin Defender LTX. The Defenders lasted until 75000 miles and of course towards the end they were getting noisy and losing grip like all tires. Its a stiff tire built for longevity but not ride comfort. The Cooper Discoverer SRX is a very comfortable tire, but I got like 40000 miles out of them. They didnt seem to last. I am now using Cooper AT3 4S and its a very comfortable tire. It is a quiet tire but only a slight tolerable hum on the highway most wont notice. I cant believe its an all terrain tire. Thus I found long lasting does not translate to ride comfort. When you have a truck you need to hit the bumps more gently. The Coopers are comfortable tires which will make you turn your truck into a car but they are not 75000 mile tires. The Michelin Defenders will leave no doubt you driving a truck. For comfort also look at Continental/General line...”
“New tires.. for 2015 Limited 4WD....Michelin Defender LTX M/S vs Cooper Discoverer SRX I have had the Coopers for a while now but am looking to get a new set of tires. Should I go with them again or try out the Michelins? The Michelins seem to get good reviews and they're about the same price across both brands. What do you think? Mostly highway driving btw Read more”
“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”
Based on 30 community posts
We haven't collected enough community discussion about this tire yet.
| Attribute | A · Cooper Discoverer SRX | B · Kumho Crugen HT51 |
|---|---|---|
| Category | Premium Touring All Season tire | All Season |
| Vehicle type | SUV and 4x4 | SUV and 4x4 |
| Sizes available | 3 | 44 |
| Rim diameters | 16″ – 20″ | 15″ – 22″ |
| Tread depth | 10 - 13/32″ | 12.5/32″ |
| UTQG | 600 - 740 A A - B | 720 A A |
| Treadwear warranty | — | 70,000 mi |
| Sidewall | Black Side Wall - Raised Outline White Lettering | Blackwall |
| Max pressure | 44 - 50 psi | 50 psi |
| Sizes in common | 1 | 1 |
Cooper Discoverer SRX
Kumho Crugen HT51
Winner: Cooper Discoverer SRX — better snow, wet and dry. Where the Kumho Crugen HT51 is ahead, it is by less than 3 points.
Cooper Discoverer SRX scores 69 vs 49 on snow.
Cooper Discoverer SRX scores 81 vs 67 on wet.
Cooper Discoverer SRX scores 78 vs 65 on dry.
Cooper Discoverer SRX scores 71 vs 66 on treadwear.
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Cooper Discoverer SRX, 81 vs 67 on our wet score.
Cooper Discoverer SRX, 78 vs 65 on our dry score.
Cooper Discoverer SRX, 69 vs 49 on our snow score.
Neither, by our numbers: 69 vs 71 on the noise score, within 3 points.
Cooper Discoverer SRX, 74 vs 70 on our comfort score.
Cooper Discoverer SRX, 71 vs 66 on our treadwear score.
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
