Tests – · none yet Owners 62 · 2,709 reviews
Head-to-head
Updated
Kumho Ecowing ES01 KH27 vs Nexen Arrowspeed CP661 — 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 2,709 + 12 owner reviews. How we score
Arrowspeed CP661 is ahead, 69–63
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Tests – · none yet Owners 69 · 12 reviews
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
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63
Dry
Arrowspeed CP661 +568Why this score
Source Ecowing ES01 KH27 Arrowspeed CP661 Professional tests (TWG score) ≈ 65 (est.) ≈ 68 (est.) Reviews found online 61 69 Ecowing ES01 KH27: 60% × 65 (est.) + 40% × 60.7 = 63
Arrowspeed CP661: 60% × 68.4 (est.) + 40% × 68.7 = 68
No road tests of dry for Ecowing ES01 KH27. 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 Arrowspeed CP661. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
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63
Wet
Arrowspeed CP661 +871Why this score
Source Ecowing ES01 KH27 Arrowspeed CP661 Professional tests (TWG score) ≈ 65 (est.) ≈ 71 (est.) Reviews found online 61 71 Ecowing ES01 KH27: 60% × 65.2 (est.) + 40% × 60.7 = 63
Arrowspeed CP661: 60% × 70.8 (est.) + 40% × 70.8 = 71
No road tests of wet for Ecowing ES01 KH27. 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 Arrowspeed CP661. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
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67
Comfort
Level67Why this score
Source Ecowing ES01 KH27 Arrowspeed CP661 Professional tests (TWG score) ≈ 69 (est.) ≈ 69 (est.) Reviews found online 66 67 Ecowing ES01 KH27: 40% × 68.6 (est.) + 60% × 66.3 = 67
Arrowspeed CP661: 40% × 68.7 (est.) + 60% × 66.7 = 67
No road tests of comfort for Ecowing ES01 KH27 or Arrowspeed CP661. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
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65
Treadwear
Arrowspeed CP661 +368Why this score
Source Ecowing ES01 KH27 Arrowspeed CP661 Professional tests (TWG score) ≈ 66 (est.) ≈ 67 (est.) Reviews found online 65 69 Ecowing ES01 KH27: 60% × 65.6 (est.) + 40% × 64.7 = 65
Arrowspeed CP661: 60% × 67.1 (est.) + 40% × 68.8 = 68
No road tests of treadwear for Ecowing ES01 KH27. 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 Arrowspeed CP661. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).
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57
Handling (owners)
Arrowspeed CP661 +1269Why this score
Source Ecowing ES01 KH27 Arrowspeed CP661 Reviews found online 57 69
Scores at a glance
| Category | Kumho Ecowing ES01 KH27 | Nexen Arrowspeed CP661 |
|---|---|---|
| Relative Score | 63 | 69 |
| Dry | 63 | 68 |
| Wet | 63 | 71 |
| Comfort | 67 | 67 |
| Treadwear | 65 | 68 |
| Handling (owners) | 57 | 69 |
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
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
63
/ 100
Ecowing ES01 KH27
69
/ 100
Arrowspeed CP661
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Ecowing ES01 KH27
Pros
- Low road noise and quiet operation
- Smooth and comfortable ride quality
- Exceptional value for money and affordable pricing
Cons
- Inconsistent wet weather traction and a tendency to slip on damp roundabouts
- Softer sidewalls that can result in a vague or 'jelly-like' handling feel when pushed
- Lacks confidence for spirited or aggressive driving styles
Tire B Arrowspeed CP661
Pros
- Excellent value for money compared to premium brands
- High tread longevity and durability on light vehicles
- Predictable handling in both wet and dry conditions
Cons
- Reports of premature sidewall cracking or splitting
- Performance limitations during high-speed wet weather driving
- Initial 'loose' feeling during the break-in period
Specs side by side
| Attribute | A · Kumho Ecowing ES01 KH27 | B · Nexen Arrowspeed CP661 |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
Which one should you actually buy?
63
/ 100
Kumho Ecowing ES01 KH27
69
/ 100
Nexen Arrowspeed CP661
Winner: Nexen Arrowspeed CP661 — better handling, wet and dry. It leads or ties in every category we score. Nexen Arrowspeed CP661 rests on little evidence so far (0 tests, 12 reviews), so read this result as provisional.
Pick tire B
You enjoy sharp, responsive handling
Nexen Arrowspeed CP661 scores 69 vs 57 on handling.
Pick tire B
Your priority is wet-weather safety
Nexen Arrowspeed CP661 scores 71 vs 63 on wet.
Pick tire B
You want the most grip on dry roads
Nexen Arrowspeed CP661 scores 68 vs 63 on dry.
Pick tire B
You want the longest tread life
Nexen Arrowspeed CP661 scores 68 vs 65 on treadwear.
Tire A · Kumho Ecowing ES01 KH27
Tire B · Nexen Arrowspeed CP661
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Ecowing ES01 KH27 or Arrowspeed CP661?
Which is better in the wet, Ecowing ES01 KH27 or Arrowspeed CP661?
Nexen Arrowspeed CP661, 71 vs 63 on our wet score.
Which grips better on dry roads, Ecowing ES01 KH27 or Arrowspeed CP661?
Nexen Arrowspeed CP661, 68 vs 63 on our dry score.
Which is more comfortable, Ecowing ES01 KH27 or Arrowspeed CP661?
Neither, by our numbers: 67 vs 67 on the comfort score, within 3 points.
Which lasts longer, Ecowing ES01 KH27 or Arrowspeed CP661?
Nexen Arrowspeed CP661, 68 vs 65 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