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Sumitomo HTR Enhance LX looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.

Head-to-head Updated

Sumitomo HTR Enhance LX vs Yokohama AVID Ascend LX — 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 + 1 road tests and 9 + 34 owner reviews. How we score

Too close to call: HTR Enhance LX and AVID Ascend LX are level at 72.

Check price on Amazon · HTR Enhance LX Check price on Amazon · AVID Ascend LX
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Sumitomo HTR Enhance LX
Tire ASumitomo

HTR Enhance LX

All-Season tire

± 8Provisional

Tests – · none yet Owners 73 · 9 reviews

Category by category

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

  1. 74

    Dry

    AVID Ascend LX +1
    75
    Why this score
    SourceHTR Enhance LXAVID Ascend LX
    Professional tests (TWG score)≈ 72 (est.)≈ 72 (est.)
    Reviews found online7778

    HTR Enhance LX: 60% × 71.6 (est.) + 40% × 76.5 = 74

    AVID Ascend LX: 60% × 72.2 (est.) + 40% × 78 = 75

    No road tests of dry for HTR Enhance LX. 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 AVID Ascend LX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).

  2. 76

    Wet

    HTR Enhance LX +2
    74
    Why this score
    SourceHTR Enhance LXAVID Ascend LX
    Professional tests (TWG score)≈ 74 (est.)≈ 73 (est.)
    Reviews found online7775

    HTR Enhance LX: 60% × 74.4 (est.) + 40% × 77.3 = 76

    AVID Ascend LX: 60% × 73.1 (est.) + 40% × 74.9 = 74

    No road tests of wet for HTR Enhance LX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.54).

    No road tests of wet for AVID Ascend LX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.54).

  3. 63

    Snow

    AVID Ascend LX +2
    65
    Why this score
    SourceHTR Enhance LXAVID Ascend LX
    Professional tests (TWG score)≈ 66 (est.)≈ 67 (est.)
    Reviews found online5861

    HTR Enhance LX: 60% × 66.3 (est.) + 40% × 57.9 = 63

    AVID Ascend LX: 60% × 67.2 (est.) + 40% × 60.6 = 65

    No road tests of snow for HTR Enhance LX. 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 AVID Ascend LX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).

  4. 69

    Comfort

    AVID Ascend LX +3
    72
    Why this score
    SourceHTR Enhance LXAVID Ascend LX
    Professional tests (TWG score)≈ 69 (est.)≈ 70 (est.)
    Reviews found online6974

    HTR Enhance LX: 40% × 69.1 (est.) + 60% × 68.8 = 69

    AVID Ascend LX: 40% × 69.9 (est.) + 60% × 73.6 = 72

    No road tests of comfort for HTR Enhance LX or AVID Ascend LX. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 72

    Noise

    HTR Enhance LX +4
    68
    Why this score
    SourceHTR Enhance LXAVID Ascend LX
    Professional tests (TWG score) · – / 1 tests≈ 67 (est.)63
    Reviews found online8176

    HTR Enhance LX: 60% × 66.5 (est.) + 40% × 80.7 = 72

    AVID Ascend LX: 60% × 62.7 + 40% × 76 = 68

    No road tests of noise for HTR Enhance LX. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 70

    Treadwear

    AVID Ascend LX +2
    72
    Why this score
    SourceHTR Enhance LXAVID Ascend LX
    Professional tests (TWG score)≈ 68 (est.)≈ 70 (est.)
    Reviews found online7275

    HTR Enhance LX: 60% × 68.3 (est.) + 40% × 71.5 = 70

    AVID Ascend LX: 60% × 69.5 (est.) + 40% × 75 = 72

    No road tests of treadwear for HTR Enhance LX. 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 AVID Ascend LX. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).

Scores at a glance
CategorySumitomo HTR Enhance LXYokohama AVID Ascend LX
Relative Score 72 72
Dry 74 75
Wet 76 74
Snow 63 65
Comfort 69 72
Noise 72 68
Treadwear 70 72

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
Neutral
NotLessNeutralImportantMost
Recomputed
Headline score
± 8

HTR Enhance LX

± 8

AVID Ascend LX

Pros, cons & observations

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

Tire A HTR Enhance LX

Pros

  • High-quality tread and durable sidewall construction
  • Excellent performance and comfort for touring
  • Strong overall value and repurchase intent

Cons

  • Initial balancing difficulties resulting in high-speed vibrations
  • Perceived variations in build quality across different size options
All owner themes in the HTR Enhance LX review

Tire B AVID Ascend LX

Pros

  • Exceptional treadlife with reports of high mileage remaining even after tens of thousands of miles
  • Smooth and exceptionally comfortable ride quality
  • Low road noise at highway speeds

Cons

  • A few users experienced poor wet weather performance and dangerous hydroplaning
  • Isolated reports of rapid, uneven front tire wear
  • Slightly higher road noise noted by a minority of drivers compared to previous sets
All owner themes in the AVID Ascend LX review

Specs side by side

Attribute A · Sumitomo HTR Enhance LX B · Yokohama AVID Ascend LX
CategoryAll-Season tireAll-Season tire
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available—39
Rim diameters—15″ – 18″
Tread depth11/32″11/32″
UTQG600 A A800 A A
Treadwear warranty70,000 mi85,000 mi
SidewallBlackwallBlackwall
Max pressure51 psi51 psi

Which one should you actually buy?

Sumitomo HTR Enhance LX

Yokohama AVID Ascend LX

Too close to call: Sumitomo HTR Enhance LX and Yokohama AVID Ascend LX are within 2 points overall. Sumitomo HTR Enhance LX is stronger on noise. Yokohama AVID Ascend LX is stronger on comfort. Sumitomo HTR Enhance LX rests on little evidence so far (0 tests, 9 reviews), so read this result as provisional.

Pick tire A You want a quieter cabin

Sumitomo HTR Enhance LX scores 72 vs 68 on noise.

Pick tire B You want the most comfortable ride

Yokohama AVID Ascend LX scores 72 vs 69 on comfort.

Tire A · Sumitomo HTR Enhance LX
Check price on Amazon
Tire B · Yokohama AVID Ascend LX
Check price on Amazon

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HTR Enhance LX or AVID Ascend LX?

Which is better in the wet, HTR Enhance LX or AVID Ascend LX?

Neither, by our numbers: 76 vs 74 on the wet score, within 3 points.

Which grips better on dry roads, HTR Enhance LX or AVID Ascend LX?

Neither, by our numbers: 74 vs 75 on the dry score, within 3 points.

Which is better in snow, HTR Enhance LX or AVID Ascend LX?

Neither, by our numbers: 63 vs 65 on the snow score, within 3 points.

Which is quieter, HTR Enhance LX or AVID Ascend LX?

Sumitomo HTR Enhance LX, 72 vs 68 on our noise score.

Which is more comfortable, HTR Enhance LX or AVID Ascend LX?

Yokohama AVID Ascend LX, 72 vs 69 on our comfort score.

Which lasts longer, HTR Enhance LX or AVID Ascend LX?

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

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