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Head-to-head Updated

Goodyear Assurance CS Fuel Max vs Kumho Solus KL21 — 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 16 + 14 owner reviews. How we score

Assurance CS Fuel Max is ahead, 62–53

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Kumho Solus KL21
Tire BKumho

Solus KL21

All Season

± 8Provisional

Tests – · none yet Owners 46 · 14 reviews

Category by category

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

  1. 60

    Dry

    Assurance CS Fuel Max +8
    52
    Why this score
    SourceAssurance CS Fuel MaxSolus KL21
    Professional tests (TWG score)≈ 63 (est.)≈ 58 (est.)
    Reviews found online5544

    Assurance CS Fuel Max: 60% × 62.6 (est.) + 40% × 54.9 = 60

    Solus KL21: 60% × 57.9 (est.) + 40% × 43.6 = 52

    No road tests of dry for Assurance CS Fuel Max. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).

    No road tests of dry for Solus KL21. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).

  2. 65

    Wet

    Assurance CS Fuel Max +9
    56
    Why this score
    SourceAssurance CS Fuel MaxSolus KL21
    Professional tests (TWG score)≈ 66 (est.)≈ 60 (est.)
    Reviews found online6251

    Assurance CS Fuel Max: 60% × 66.1 (est.) + 40% × 62.2 = 65

    Solus KL21: 60% × 60 (est.) + 40% × 51.1 = 56

    No road tests of wet for Assurance CS Fuel Max. 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 Solus KL21. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. 60

    Snow

    Assurance CS Fuel Max +8
    52
    Why this score
    SourceAssurance CS Fuel MaxSolus KL21
    Professional tests (TWG score)≈ 65 (est.)≈ 61 (est.)
    Reviews found online5339

    Assurance CS Fuel Max: 60% × 64.8 (est.) + 40% × 52.6 = 60

    Solus KL21: 60% × 60.5 (est.) + 40% × 39.1 = 52

    No road tests of snow for Assurance CS Fuel Max. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).

    No road tests of snow for Solus KL21. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).

  4. 57

    Comfort

    Assurance CS Fuel Max +6
    51
    Why this score
    SourceAssurance CS Fuel MaxSolus KL21
    Professional tests (TWG score)≈ 65 (est.)≈ 64 (est.)
    Reviews found online5143

    Assurance CS Fuel Max: 40% × 65.2 (est.) + 60% × 51.1 = 57

    Solus KL21: 40% × 63.5 (est.) + 60% × 42.9 = 51

    No road tests of comfort for Assurance CS Fuel Max or Solus KL21. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 64

    Noise

    No comparison
    –
    Why this score
    SourceAssurance CS Fuel MaxSolus KL21
    Professional tests (TWG score)≈ 66 (est.)–
    Reviews found online59–

    Assurance CS Fuel Max: 60% × 66.4 (est.) + 40% × 59.4 = 64

    No road tests of noise for Assurance CS Fuel Max. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.

  6. 64

    Treadwear

    Assurance CS Fuel Max +8
    56
    Why this score
    SourceAssurance CS Fuel MaxSolus KL21
    Professional tests (TWG score)≈ 65 (est.)≈ 61 (est.)
    Reviews found online6250

    Assurance CS Fuel Max: 60% × 65 (est.) + 40% × 62.2 = 64

    Solus KL21: 60% × 60.5 (est.) + 40% × 49.9 = 56

    No road tests of treadwear for Assurance CS Fuel Max. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

    No road tests of treadwear for Solus KL21. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

  7. 59

    Handling (owners)

    Assurance CS Fuel Max +15
    44
    Why this score
    SourceAssurance CS Fuel MaxSolus KL21
    Reviews found online5944
Scores at a glance
CategoryGoodyear Assurance CS Fuel MaxKumho Solus KL21
Relative Score 62 53
Dry 60 52
Wet 65 56
Snow 60 52
Comfort 57 51
Noise 64 –
Treadwear 64 56
Handling (owners) 59 44

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
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost

Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.

Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
± 8

Assurance CS Fuel Max

± 8

Solus KL21

Only categories both tires have data for count toward the headline score.

Pros, cons & observations

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

Tire A Assurance CS Fuel Max

Pros

  • Exceptional tread life with many users reporting over 50,000 miles
  • Improved fuel economy
  • Consistent and reliable on-road handling

Cons

  • Higher upfront cost compared to competing options
  • Limited availability at some local retailers
  • Primarily optimized for on-road use rather than off-road or severe weather conditions
All owner themes in the Assurance CS Fuel Max review

Tire B Solus KL21

Pros

  • Impressive treadwear and longevity reported by many users, with several achieving over 30,000 to 40,000 miles
  • Good ride comfort and low road noise under normal driving conditions
  • Affordable replacement pricing compared to premium tier brands

Cons

  • Extremely poor grip and significantly increased braking distances on fresh or compact snow and ice
  • Isolated reports of extreme premature wear or complete tread failure under 20,000 miles
  • Structural deformation issues reported by at least one user
All owner themes in the Solus KL21 review

Specs side by side

Attribute A · Goodyear Assurance CS Fuel Max B · Kumho Solus KL21
CategoryAll-Season tireAll Season
Vehicle typeSUV and 4x4Passenger Car / Crossover
Sizes available25
Rim diameters17″ – 18″17″ – 20″
Tread depth10 - 11/32″—
UTQG600 A B—
Treadwear warranty65,000 mi—
SidewallVertical Serrated Band—
Max pressure51 psi—

Which one should you actually buy?

Goodyear Assurance CS Fuel Max

Kumho Solus KL21

Winner: Goodyear Assurance CS Fuel Max — better handling, wet and dry. It leads or ties in every category we score. Goodyear Assurance CS Fuel Max rests on little evidence so far (0 tests, 16 reviews), so read this result as provisional. Kumho Solus KL21 rests on little evidence so far (0 tests, 14 reviews), so read this result as provisional.

Pick tire A You enjoy sharp, responsive handling

Goodyear Assurance CS Fuel Max scores 59 vs 44 on handling.

Pick tire A Your priority is wet-weather safety

Goodyear Assurance CS Fuel Max scores 65 vs 56 on wet.

Pick tire A You want the most grip on dry roads

Goodyear Assurance CS Fuel Max scores 60 vs 52 on dry.

Pick tire A You drive through snowy winters

Goodyear Assurance CS Fuel Max scores 60 vs 52 on snow.

Tire A · Goodyear Assurance CS Fuel Max
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Tire B · Kumho Solus KL21
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Assurance CS Fuel Max or Solus KL21?

Which is better in the wet, Assurance CS Fuel Max or Solus KL21?

Goodyear Assurance CS Fuel Max, 65 vs 56 on our wet score.

Which grips better on dry roads, Assurance CS Fuel Max or Solus KL21?

Goodyear Assurance CS Fuel Max, 60 vs 52 on our dry score.

Which is better in snow, Assurance CS Fuel Max or Solus KL21?

Goodyear Assurance CS Fuel Max, 60 vs 52 on our snow score.

Which is more comfortable, Assurance CS Fuel Max or Solus KL21?

Goodyear Assurance CS Fuel Max, 57 vs 51 on our comfort score.

Which lasts longer, Assurance CS Fuel Max or Solus KL21?

Goodyear Assurance CS Fuel Max, 64 vs 56 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