Kumho Solus 4S HA32+ vs Toyo Celsius AS2
- TR Score
- 8.3/10
- Owners say
- 67% · 6
- TR Score
- 8.1/10
- Owners say
- 82% · 6
In the 6 independent tests that ran both tyres, the Kumho Solus 4S HA32+ finished ahead 5 times and the Celsius AS2 once. The Solus 4S HA32+ stopped 2.2% shorter in the wet; the Celsius AS2 lasted 19.8% longer in the wear tests.
Data updated
Which should you buy?
Choose Kumho Solus 4S HA32 Plus for wetter climates, mixed seasons with regular light snow, and drivers prioritizing braking safety and control. Choose Toyo Celsius AS2 for high-mileage motorway use, strong aquaplaning security, lower running costs, and shorter dry stops.
Where the Solus 4S HA32+ is stronger
- Wet 13/21 Stopped 2.2% shorter in the wet (6 tests)
- Snow 12/14 Stopped 5.7% shorter on snow (4 tests)
- Ice 1/1
- Comfort 4/7
Where the Celsius AS2 is stronger
- Shorter dry braking across tests
- Excellent aquaplaning resistance (straight and curved)
- Lower rolling resistance and fuel consumption
The measured tallies (wins out of measurements in the shared tests) come straight from the tables below. The written verdict and bullet points are analysis of those tests and of owner reviews; where they and the figures disagree, the figures are right.
Solus 4S HA32+ vs Celsius AS2 at a glance
| Category | Solus 4S HA32+ | Gap | Celsius AS2 |
|---|---|---|---|
| Shared tests won6 shared tests | 5 | 1 | |
| Dry9 measurements | 3 | The Celsius AS2 stopped 3.1% shorter in the dry (6 tests) | 6 |
| Wet21 measurements | 13 | The Solus 4S HA32+ stopped 2.2% shorter in the wet (6 tests) | 8 |
| Snow14 measurements | 12 | The Solus 4S HA32+ stopped 5.7% shorter on snow (4 tests) | 2 |
| Ice1 measurement | 1 | 0 | |
| Comfort7 measurements | 4 | 3 | |
| Value14 measurements | 3 | The Celsius AS2 lasted 19.8% longer in the wear tests (4 tests) | 11 |
| Tyre Reviews Scoreevery test and review we hold | 8.3/10 | The Solus 4S HA32+ by 0.2 | 8.1/10 |
| Owner rating6 and 6 reviews | 67% | The Celsius AS2 by 15 points | 82% |
| Would buy againshare of owners | 67% | The Celsius AS2 by 16 points | 83% |
| Pricein the 3 tests that listed prices | Cheaper | The Celsius AS2 was dearer in 3 of 3 | +7% |
Wins count every measurement the shared tests recorded for both tyres; a tick marks the tyre ahead on that line. Subjective driver scores count as wins but are never averaged, because each test uses its own scale.
Head to head in 6 tests, 2022 to 2024
Each row is one published test in which both tyres ran on the same car, in the same size, on the same day. The line is the whole field, winner on the left.
| Test | Solus 4S HA32+ | Field | Celsius AS2 |
|---|---|---|---|
| 2024 AutoBild All Season Tyre Test | P13 of 15 | P14 of 15 | |
| 2024 All Season Tyre Market Overview | P15 of 37 | P12 of 37 | |
| 2024 ADAC All Season Tyre Test | P5 of 16 | P11 of 16 | |
| 2023 Auto Bild All Season Tyre Test | P10 of 16 | P14 of 16 | |
| 2023 All Season Tyre 35 Set Shootout | P15 of 35 | P16 of 35 | |
| 2022 Auto Bild All Season Tyre Test | P5 of 15 | P11 of 15 |
Performance profile
16 measurements from the 6 shared tests, each tyre shown as its share of the better figure in every test.
Where each is furthest ahead
Solus 4S HA32+
Celsius AS2
Point at or tap any spoke for both tyres' figures.
In each test the better of the two figures counts as 100% and the other as its share of it, so a 36 m stop against 34.2 m is 95%; each spoke averages the shared tests that recorded it. The scale stops at 85%: a point further in sits on the hub's edge, hollow. 5 measurements recorded in only one shared test are left off; every measurement is in the table further down.
Where each scores higher
Solus 4S HA32+
Celsius AS2
Point at or tap any spoke for both tyres' figures.
Category scores are percentiles among tyres of the same season and class: 90 means this tyre out-performs 90% of them, measured across every test we hold, not only the ones it appeared in.
Where owners rate each higher
Solus 4S HA32+
Celsius AS2
Point at or tap any spoke for both tyres' figures.
Owners rate the Solus 4S HA32+ 67% from 6 reviews and the Celsius AS2 82% from 6. Each spoke is one question owners answer out of 10; reviews are vetted by hand before publication.
Every measurement, side by side
Averages of the figures both tyres posted in the same tests. The gap is the average of each test's own gap, so figures from different cars and years are never mixed. Open a discipline for its measurements, and a measurement for every test's figure.
| Measurement | Solus 4S HA32+ | Gap | Celsius AS2 | Wins | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 42.72 | 3.1% | 41.38 | 0-6 | |||||||||||||||||||||||||
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| 91.97 | 0.8% | 91.27 | 3-0 | |||||||||||||||||||||||||
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| 50.4 | 2.2% | 51.47 | 6-0 | |||||||||||||||||||||||||
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| 40.6 | 5.8% | 43.1 | 1-0 | |||||||||||||||||||||||||
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| 73 | 4.2% | 70.1 | 3-0 | |||||||||||||||||||||||||
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| 11.97 | 3.3% | 12.37 | 3-0 | |||||||||||||||||||||||||
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| 73.15 | 7.3% | 78.5 | 0-4 | |||||||||||||||||||||||||
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| 2.62 | 29.2% | 3.39 | 0-4 | |||||||||||||||||||||||||
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| 21.35 | 5.7% | 22.53 | 4-0 | |||||||||||||||||||||||||
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| 1,982 | 11.5% | 1,801 | 4-0 | |||||||||||||||||||||||||
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| 55.2 | 2.9% | 53.67 | 3-0 | |||||||||||||||||||||||||
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| 3.88 | 1.5% | 3.93 | 1-2 | |||||||||||||||||||||||||
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| 19.6 | 7.5% | 21.2 | 1-0 | |||||||||||||||||||||||||
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| 72.2 | 0.3 dB | 72.53 | 3-1 | |||||||||||||||||||||||||
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| 2,673 | 0.7% | 2,806 | 1-2 | |||||||||||||||||||||||||
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| 49,382 | 19.8% | 58,110 | 1-3 | |||||||||||||||||||||||||
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| 8.69 | 10.5% | 7.75 | 0-3 | |||||||||||||||||||||||||
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| 5.4 | 1.3% | 5.34 | 2-2 | |||||||||||||||||||||||||
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| 19.6 | 6.1% | 18.4 | 0-1 | |||||||||||||||||||||||||
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| 69 | 14.5% | 59 | 0-1 | |||||||||||||||||||||||||
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| 1,116 | 51.5% | 541 | 0-1 | |||||||||||||||||||||||||
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Braking distances and lap times are better when lower; speeds, wear and grip figures when higher. A test's figures are its own: sizes, cars, surfaces and temperatures differ from one to the next, which is why the averages here are only ever of tests the two tyres shared. "Scored" rows are subjective driver ratings: each test uses its own scale, so only the wins are counted.
Scores beyond the shared tests
On the Tyre Reviews Score, which weighs every test and review we hold, the Solus 4S HA32+ scores 8.3 and the Celsius AS2 8.1 out of 10.
| Solus 4S HA32+ | Category | Celsius AS2 | ||
|---|---|---|---|---|
| 46 | Dry | 67 | ||
| 56 | Wet | 61 | ||
| 32 | Comfort | 23 | ||
| 41 | Value | 85 | ||
| 74 | Snow | 29 | ||
| 69 | Ice | 13 | ||
Category scores are percentiles among tyres of the same season and class: 90 means this tyre out-performs 90% of them, measured across every test we hold, not only the ones it appeared in.
What owners say
| Solus 4S HA32+ | Category | Celsius AS2 | ||
|---|---|---|---|---|
| 7.3 | Dry Grip | 8 | ||
| 7 | Wet Grip | 8.3 | ||
| 6.2 | Road Feedback | 7.8 | ||
| 5.7 | Handling | 7.2 | ||
| 8 | Wear | 8.5 | ||
| 7 | Comfort | 9.8 | ||
| 8.7 | Snow Grip | 8 | ||
| 8 | Ice Grip | 6.7 | ||
Owners rate the Solus 4S HA32+ 67% from 6 reviews and the Celsius AS2 82% from 6. Reviews are vetted by hand before publication; ownership is not verified.
Kumho Solus 4S HA32+
- 67%from 6 reviews
- 67%would buy again
- 73,500 milesdriven by reviewers
Drivers generally describe the Kumho Solus 4S HA32 Plus as a good-value all-season tyre aimed at relaxed, family-car driving, with strong confidence in cold/wet conditions and good resistance to aquaplaning. Comfort is often rated well, with predictable behaviour when pushed moderately. The most consistent drawbacks are a less sporty/less communicative feel and some reports of instability or “float/drift,” plus a small fuel-economy penalty and occasional noise. One low-scoring outlier found the tyre extremely unstable and unsafe in the wet and at motorway speeds.
- Good wet/cold grip and overall safety for calm driving
- Strong aquaplaning resistance
- Good value versus premium alternatives and far better than budget/Chinese brands
- Comfortable ride and predictable handling at normal speeds
- Not suited to fast/sporty or powerful-car driving; muted steering/braking feel
- Some reports of unsteady/floaty behaviour (drift/fidgety feel)
- Higher rolling resistance leading to slightly worse fuel economy
Summarised by AI from 6 vetted reviews; the reviews themselves are on the tyre page.
All 6 Solus 4S HA32+ reviewsBetter than Chinese brands but not even close to premium brands. Only for calm drive
Toyo Celsius AS2
- 82%from 6 reviews
- 83%would buy again
- 25,800 milesdriven by reviewers
Drivers report the Toyo Celsius AS2 tyre delivers a notably comfortable, quiet ride with strong wet-road security and good resistance to aquaplaning. Most users also find dry grip solid and winter/snow capability surprisingly competent for an all-season, with only minor impacts on fuel economy. A recurring trade-off is a softer, more comfort-oriented feel that can come across as slightly spongy or less sharp in handling compared with sportier summer tyres.
- High comfort/ride quality
- Low road noise
- Strong wet grip and stability
- Good resistance to aquaplaning
- Softer, less sporty steering/handling feel (slightly spongy)
Summarised by AI from 6 vetted reviews; the reviews themselves are on the tyre page.
All 6 Celsius AS2 reviewsThis is just my initial review of them after around 1K miles, I've fitted these on my girlfriend's car since both her summer and winter sets were getting long in the tooth. The car doesn't get driven that much, and when it does it's mostly through town so I swallowed my tyre snobbery and decided all-seasons would be a good fit. I didn't get to test them in the snow however so far they've been really good in both wet and dry but what surprised me the most was the ride quality and the (lack of) noise. Fuel consumption doesn't seem to be affected that much either. I got a really good deal on them, less than €60/tyre, when most of the midrange competition is priced at 70 and above so I'm really happy with the purchase. Made in Japan too.
Sizes, EU label and lineage
| Category | Solus 4S HA32+ | Celsius AS2 |
|---|---|---|
| Season | All Season | All Season |
| Price in the shared tests | The Celsius AS2 was the dearer tyre in 3 of the 3 tests that listed prices, by 7% on average. Each test priced the tyres in its own market at the time; only the gap is comparable. | |
Reading the results
Written from the test results and owner reviews above. It is analysis, not a measurement: where it and the tables disagree, the tables are right.
Two closely matched premium-touring all-season tyres, the Kumho Solus 4S HA32 Plus and Toyo Celsius AS2, take different paths to year-round usability. Across six shared tests, Kumho consistently delivers stronger grip and control in the wet and on snow, while Toyo leans into efficiency, durability, and aquaplaning security.
Drivers will notice Kumho's confidence on slippery surfaces: shorter wet and winter braking, higher snow traction, and more composed wet handling. Toyo counters with shorter dry braking, markedly better straight/curved aquaplaning resistance, lower rolling resistance, and substantially higher projected mileage-often by double-digit margins.
Conclusion
Pattern-wise, Kumho is the safer, more predictable option when conditions turn adverse. It wins wet braking in all shared instances, leads most wet handling metrics, and is convincingly better on snow and ice. If your climate sees frequent rain, shoulder-season chill, or regular light snow, the Solus 4S HA32 Plus provides a wider safety window and more secure dynamics.
Toyo's proposition is value and longevity: class-leading aquaplaning reserves, consistently shorter dry stops, lower fuel use, and standout tread life make the Celsius AS2 cost-effective for high-mileage drivers and wet-motorway users who prioritize stability at speed in standing water. For balanced, year-round road use with emphasis on efficiency and aquaplaning, Toyo is compelling; for all-weather grip and confidence on wet/snow, Kumho is the clearer choice.
Solus 4S HA32+ vs Celsius AS2: your questions
Is the Kumho Solus 4S HA32+ or the Toyo Celsius AS2 the better tyre?
In the 6 independent tests that ran both tyres, the Kumho Solus 4S HA32+ finished ahead 5 times and the Celsius AS2 once. On the Tyre Reviews Score, which weighs every test and review we hold, the Solus 4S HA32+ scores 8.3 and the Celsius AS2 8.1 out of 10.
Which is better in the wet, the Solus 4S HA32+ or the Celsius AS2?
The Solus 4S HA32+ led 13 of the 21 wet measurements the shared tests recorded. On average it stopped 2.2% shorter in the wet across 6 tests.
Which is better in the dry?
The Celsius AS2 led 6 of the 9 dry measurements the shared tests recorded. On average it stopped 3.1% shorter in the dry across 6 tests.
Which is better in snow?
The Solus 4S HA32+ led 12 of the 14 snow measurements the shared tests recorded. On average it stopped 5.7% shorter on snow across 4 tests.
Which lasts longer and costs less to run?
The Celsius AS2 lasted 19.8% longer in the wear tests (4 tests) and had 10.5% lower rolling resistance (3 tests). Owners rate wear 8/10 for the Solus 4S HA32+ and 8.5/10 for the Celsius AS2.
Which is quieter and more comfortable?
Owners rate comfort 7/10 for the Solus 4S HA32+ and 9.8/10 for the Celsius AS2.
What do owners say?
Owners rate the Solus 4S HA32+ 67% from 6 reviews and the Celsius AS2 82% from 6. 67% of Solus 4S HA32+ owners would buy it again, against 83% for the Celsius AS2.
Which is more expensive?
In the 3 tests that listed prices, the Celsius AS2 was the dearer tyre in 3 of them, by 7% on average. Prices are the test's own at the time, in its own market.
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Run either of these?
Your review is the part of this page no test can supply: how the tyre wore, how it aged, what it was like in the rain in year three. It takes about five minutes.
Where this data comes from
Finishing positions and measurements are transcribed from each published test. A test only counts here when both tyres ran in it, so every figure was recorded on the same car, size and day as the one it is compared to.
About the TR Score
The Tyre Reviews Score rates each tyre out of 10 from every independent test result and vetted owner review we hold, so two tyres can be compared even before a test has run them together.
Who does the testing
Every test published as a Tyre Reviews test is run by Jonathan Benson, who has been testing tyres independently since 2007.
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