TopTire Review

    Kumho Solus 4S HA32 vs Yokohama BluEarth 4S AW21

    2026 test data · 10 independent tests · 1 head-to-head

    → See full Kumho vs Yokohama brand comparison

    Kumho Solus 4S HA32 vs Yokohama BluEarth 4S AW21: the full picture

    This comparison is built only from published independent tests — no manufacturer claims and no sponsored reviews. Between them, the Kumho Solus 4S HA32 and Yokohama BluEarth 4S AW21 appear in 10 tests, 1 of which put both tires on the same track on the same day. Head-to-head results carry the most weight here, because surface, weather and test car all change between events and make raw numbers from different tests hard to compare directly.

    How the Kumho Solus 4S HA32 performs. It takes the win in dry. Its overall Tire Lab Score is 90/100, based on 5 tests.

    How the Yokohama BluEarth 4S AW21 performs. It takes the win in wet, snow, ice, noise / comfort, mileage, efficiency. Its overall Tire Lab Score is 87/100, based on 5 tests.

    What this means for you. Category wins matter more than the overall score when your driving is weighted toward one condition — a wet-climate commuter should follow the wet braking column, while a high-mileage driver should follow wear and rolling resistance. Also check that both tires are actually offered in your size and load rating: performance can shift between sizes, and availability differs between the European and North American markets.

    Verdict

    The Kumho Solus 4S HA32 is the stronger all-round choice, leading in dry and Tire Lab Score. The Yokohama BluEarth 4S AW21 still wins on wet, making it the right pick if that matters most to you.

    Which one should you buy?

    Choose Kumho Solus 4S HA32 if

    Overall winner
    • You prioritise dry

    Choose Yokohama BluEarth 4S AW21 if

    • You prioritise wet
    • You prioritise snow
    • You prioritise ice

    Test profile

    MetricKumho Solus 4S HA32Yokohama BluEarth 4S AW21
    SegmentTouringTouring
    TypeAll SeasonAll Season
    Tests used55
    Best rank#1#1
    Avg rank10.89.8
    Latest test20222024
    Tire Lab Score89.587

    Tire Lab Score

    89.5
    Very Good · All Season
    87
    Very Good · All Season

    Performance overview

    Category-by-category results

    CategoryKumho Solus 4S HA32Yokohama BluEarth 4S AW21Winner
    💧Wet
    Avg rank 10.8
    Avg rank 10.5
    2
    Yokohama BluEarth 4S AW21
    ☀️Dry
    Avg rank 11.7
    Avg rank 12.7
    1
    Kumho Solus 4S HA32
    ❄️Snow
    Avg rank 9.0
    Avg rank 5.0
    12
    Yokohama BluEarth 4S AW21
    🧊IceNo data
    Avg rank 8.0
    1
    Yokohama BluEarth 4S AW21
    🔇Noise / Comfort
    Avg rank 7.8
    1
    Avg rank 5.4
    21
    Yokohama BluEarth 4S AW21
    📏Mileage
    Avg rank 7.5
    1
    Avg rank 6.7
    1
    Yokohama BluEarth 4S AW21
    🔋Efficiency
    Avg rank 5.0
    1
    Avg rank 1.0
    2
    Yokohama BluEarth 4S AW21

    Tests used in this comparison

    Both tires were measured head-to-head in these 1 independent test:

    💧 Wet: Kumho Solus 4S HA32 vs Yokohama BluEarth 4S AW21

    The Yokohama BluEarth 4S AW21 wins this category with an average rank of 10.5, compared to 10.8 for the Kumho Solus 4S HA32.

    ☀️ Dry: Kumho Solus 4S HA32 vs Yokohama BluEarth 4S AW21

    The Kumho Solus 4S HA32 wins this category with an average rank of 11.7, compared to 12.7 for the Yokohama BluEarth 4S AW21.

    ❄️ Snow: Kumho Solus 4S HA32 vs Yokohama BluEarth 4S AW21

    The Yokohama BluEarth 4S AW21 wins this category with an average rank of 5.0, compared to 9.0 for the Kumho Solus 4S HA32.

    🧊 Ice: Kumho Solus 4S HA32 vs Yokohama BluEarth 4S AW21

    The Yokohama BluEarth 4S AW21 wins this category with an average rank of 8.0, compared to no data for the Kumho Solus 4S HA32.

    🔇 Noise / Comfort: Kumho Solus 4S HA32 vs Yokohama BluEarth 4S AW21

    The Yokohama BluEarth 4S AW21 wins this category with an average rank of 5.4, compared to 7.8 for the Kumho Solus 4S HA32.

    📏 Mileage: Kumho Solus 4S HA32 vs Yokohama BluEarth 4S AW21

    The Yokohama BluEarth 4S AW21 wins this category with an average rank of 6.7, compared to 7.5 for the Kumho Solus 4S HA32.

    🔋 Efficiency: Kumho Solus 4S HA32 vs Yokohama BluEarth 4S AW21

    The Yokohama BluEarth 4S AW21 wins this category with an average rank of 1.0, compared to 5.0 for the Kumho Solus 4S HA32.

    Frequently asked questions

    Which is better in the wet, Kumho Solus 4S HA32 or Yokohama BluEarth 4S AW21?

    Across independent wet-braking tests, the Yokohama BluEarth 4S AW21 ranks higher on average than the Kumho Solus 4S HA32.

    Which has shorter dry braking distance?

    The Kumho Solus 4S HA32 averages a better dry-braking rank than the Yokohama BluEarth 4S AW21 across the tests where both appeared.

    Which tire is quieter and more comfortable?

    On combined noise and comfort metrics, the Yokohama BluEarth 4S AW21 ranks better than the Kumho Solus 4S HA32.

    Which tire lasts longer?

    Based on wear and abrasion testing, the Yokohama BluEarth 4S AW21 shows better mileage performance than the Kumho Solus 4S HA32.

    How many tests were used in this comparison?

    Kumho Solus 4S HA32 appears in 5 independent tests, Yokohama BluEarth 4S AW21 in 5, with 1 head-to-head tests where both were measured.

    Also compare

    Data aggregated from independent testing organizations including ADAC, Auto Bild, TCS, and Auto Motor und Sport. Read our methodology →