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Comparison: Toyo Celsius AS2 vs. Kumho HA32 Solus 4S vs. GT RADIAL ClimateActive

In this tyre comparison, we'll be contrasting two models: the Toyo Celsius AS2 made in Japan and the Kumho HA32 Solus 4S made in China, both popular all-round tyres.


The Celsius AS2 by Toyo rates slightly lower at 54% compared to the Solus 4S by Kumho at 64%. It's worth noting that both models have been recently replaced, and you can find the new models here.


In the Autobild test involving 15 tyres, the Toyo Celsius AS2 ranked 12th, while the Kumho HA32 Solus 4S achieved a more impressive 5th place. The Celsius AS2 was the champion in "Aquaplaning - cross" category, whereas the Solus 4S demonstrated superior "Exterior noise" and "Snow braking".


Additional tests for 2022 and 2023 by Autobild similarly highlighted the strengths and weaknesses of both tyres. The strengths of Toyo Celsius AS2 include good aquaplaning reserves, high mileage and a great price-performance ratio. Unfortunately, it exhibited mediocre Winter qualities and slightly longer wet braking distances. As for Kumho HA32 Solus 4S, its good snow traction, safe wet/dry handling, and low noise were noted, but it falls behind in terms of aquaplaning reserves and exhibits slightly extended wet/dry braking distances along with higher rolling resistance.


In summary, the Kumho HA32 Solus 4S is the more highly regarded model overall, offering good performance in a variety of categories and a superior test rating. However, the Toyo Celsius AS2 also showcases some noteworthy strengths, especially if aquaplaning is of high concern. Both are considered valuable options for all-round tyres, with distinct strengths and weaknesses to be weighed according to your individual needs and conditions.

Test Profile

Toyo
Celsius AS2
Kumho
HA32 Solus 4S
GT
RADIAL ClimateActive
Number of tests
14
9
3
Best position
#7
#5
#5
Average position
11.6
10.8
7.3
Latest test
2025
2023
2025
Available sizes
109
73
1

Wet

Wet
Toyo Celsius AS2
57%
Kumho HA32 Solus 4S
67%
GT RADIAL ClimateActive
74%
Wet braking
Toyo Celsius AS2
55%
Kumho HA32 Solus 4S
61%
GT RADIAL ClimateActive
70%
Wet handling
Toyo Celsius AS2
59%
Kumho HA32 Solus 4S
70%
GT RADIAL ClimateActive
80%
Aquaplaning - longitudal
Toyo Celsius AS2
75%
Kumho HA32 Solus 4S
68%
GT RADIAL ClimateActive
68%
Aquaplaning - cross
Toyo Celsius AS2
82%
Kumho HA32 Solus 4S
62%
GT RADIAL ClimateActive
72%
Wet circle cornering
Toyo Celsius AS2
63%
Kumho HA32 Solus 4S
71%
GT RADIAL ClimateActive
85%

Snow

Snow
Toyo Celsius AS2
61%
Kumho HA32 Solus 4S
71%
GT RADIAL ClimateActive
73%
Snow traction
Toyo Celsius AS2
52%
Kumho HA32 Solus 4S
72%
GT RADIAL ClimateActive
75%
Snow handling
Toyo Celsius AS2
59%
Kumho HA32 Solus 4S
67%
GT RADIAL ClimateActive
66%
Snow braking
Toyo Celsius AS2
69%
Kumho HA32 Solus 4S
81%
GT RADIAL ClimateActive
84%
Snow cornering
Toyo Celsius AS2
65%
Kumho HA32 Solus 4S
58%
GT RADIAL ClimateActive
66%

Dry

Dry
Toyo Celsius AS2
69%
Kumho HA32 Solus 4S
68%
GT RADIAL ClimateActive
72%
Dry braking
Toyo Celsius AS2
74%
Kumho HA32 Solus 4S
63%
GT RADIAL ClimateActive
71%
Dry handling
Toyo Celsius AS2
68%
Kumho HA32 Solus 4S
73%
GT RADIAL ClimateActive
74%

Comfort

Comfort
Toyo Celsius AS2
57%
Kumho HA32 Solus 4S
76%
GT RADIAL ClimateActive
72%
Exterior noise
Toyo Celsius AS2
76%
Kumho HA32 Solus 4S
80%
GT RADIAL ClimateActive
78%
Comfort
Toyo Celsius AS2
82%
Kumho HA32 Solus 4S
68%
GT RADIAL ClimateActive
77%

Costs

Costs
Toyo Celsius AS2
77%
Kumho HA32 Solus 4S
65%
GT RADIAL ClimateActive
69%
Rolling resistance
Toyo Celsius AS2
68%
Kumho HA32 Solus 4S
59%
GT RADIAL ClimateActive
80%
Price/value
Toyo Celsius AS2
91%
Kumho HA32 Solus 4S
83%
GT RADIAL ClimateActive
56%
Mileage
Toyo Celsius AS2
84%
Kumho HA32 Solus 4S
70%
GT RADIAL ClimateActive
53%

Dimensions and prices

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