Toyo T1S looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.

Head-to-head Updated

Bridgestone Potenza Sport vs Toyo T1S — Compared

Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews. Based on 28 + 0 road tests and 724 + 10 owner reviews. How we score

Potenza Sport is ahead, 78–53

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Bridgestone Potenza Sport

Potenza Sport

Summer

Tests 80 · 28 tests Owners 65 · 724 reviews

Best test result: #1 of 52 in 2025 Summer Tyre Test Shootout (dry braking)

“Replacement tires. Bridgestone Potenza Sport. 8k miles. Fronts/Rears. WTF Bridgestone? Or is it me? No burnouts!”

Toyo T1S
Tire BToyo

T1S

Summer

Provisional

Tests – · none yet Owners 46 · 10 reviews

Category by category

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

  1. 87

    Dry

    Potenza Sport +35
    52
    Why this score
    SourcePotenza SportT1S
    Professional tests (TWG score) · 27 / – tests95≈ 58 (est.)
    Reviews found online7543

    Potenza Sport: 60% × 95.2 + 40% × 75.1 = 87

    T1S: 60% × 57.7 (est.) + 40% × 42.8 = 52

    No road tests of dry for T1S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.40).

  2. 85

    Wet

    Potenza Sport +34
    51
    Why this score
    SourcePotenza SportT1S
    Professional tests (TWG score) · 27 / – tests94≈ 55 (est.)
    Reviews found online7244

    Potenza Sport: 60% × 93.6 + 40% × 72.1 = 85

    T1S: 60% × 55.5 (est.) + 40% × 44.2 = 51

    No road tests of wet for T1S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.56).

  3. 58

    Comfort

    T1S +1
    59
    Why this score
    SourcePotenza SportT1S
    Professional tests (TWG score) · 4 / – tests55≈ 66 (est.)
    Reviews found online6449

    Potenza Sport: 60% × 54.7 + 40% × 63.5 = 58

    T1S: 60% × 65.6 (est.) + 40% × 48.6 = 59

    No road tests of comfort for T1S. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  4. 44

    Noise

    No comparison
    –
    Why this score
    SourcePotenza SportT1S
    Professional tests (TWG score) · 23 / – tests30–
    Reviews found online65–

    Potenza Sport: 60% × 30 + 40% × 64.6 = 44

  5. 61

    Treadwear

    Potenza Sport +4
    57
    Why this score
    SourcePotenza SportT1S
    Professional tests (TWG score) · 4 / – tests71≈ 61 (est.)
    Reviews found online4550

    Potenza Sport: 60% × 71.1 + 40% × 44.9 = 61

    T1S: 60% × 60.9 (est.) + 40% × 50.3 = 57

    No road tests of treadwear for T1S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.31).

  6. 73

    Handling (owners)

    Potenza Sport +27
    46
    Why this score
    SourcePotenza SportT1S
    Reviews found online7346
Scores at a glance
Bridgestone Potenza Sport vs Toyo T1S: scores by category (0–100)
CategoryBridgestone Potenza SportToyo T1S
Relative Score 78 53
Dry 87 52
Wet 85 51
Comfort 58 59
Noise 44 –
Treadwear 61 57
Handling (owners) 73 46

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
Less important
NotLessNeutralImportantMost

Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.

Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score

Potenza Sport

T1S

Only categories both tires have data for count toward the headline score.

Pros, cons & observations

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

Tire A Potenza Sport

Pros

  • Outstanding dry and wet grip
  • Precise, telepathic steering response and feedback
  • Excellent braking performance

Cons

  • Fast tread wear and short lifespan
  • High road noise
  • Firm, sometimes harsh ride quality over bumps
All owner themes in the Potenza Sport review

Tire B T1S

Pros

  • Strong dry-weather grip and handling
  • Excellent value for the price point
  • Good steering feedback and road feel

Cons

  • Unpredictable or poor traction in wet and cold conditions
  • Long break-in period required for optimal grip
  • Inconsistent performance across different vehicle power outputs
All owner themes in the T1S review

What real owners are saying

From Reddit, forums and review threads. Not part of our score

Tire A

Bridgestone Potenza Sport

Mixed

The Bridgestone Potenza Sport is widely praised for its sharp steering response, strong dry and wet grip, and attractive pricing compared to competitors. However, community feedback frequently highlights significant drawbacks, including rapid tread wear, poor track durability, high rolling resistance, and a firm ride. While viewed favorably for enthusiastic street driving, drivers caution against heavy track use due to accelerated wear.

rennlist.com

“Due to rain later in the week I’ve only been able to put ~50 miles on them. Other tires I’ve run are the Bridgestone S02 and S03. I preferred the S02’s over the S03. PS4’s, PS Cup’s and Hankook V12’s. And Hoosier R6 at track. So far, the New Potenza Sports are outstanding. Low road noise, fantastic dry traction, turn in and braking. No wet experience yet, and hopefully never as I don’t typically drive this car in the rain. I’m going to play around with tire pressure, so if anyone has any recommendations for 997 C2 I’d love to hear.”

forum.miata.net

“I used 2 sets of 4 Potenza Sport on my daily in 225/45r17, excellent tires I don't think it can be beaten in terms of feeling (the Sport Contact 7 seems very good too but not tested), rigid sidewalls, progressive, very very easy to drive, fast even in the wet. Yes very soft rubber not for track but on the other hand in the wet close to 0°C it's incredible, much better than mid-range 4 seasons. On the rear axle (FWD daily) I did several winters with snowy days and -5/-10°C, the following year and even worn to 100% there is only aquaplaning that it can fear (be careful I didn't say it was good on snow lol, with its continuous rubber bands it's a disaster.).”

grassrootsmotorsports.com

“Darn, no 255/45R18, so I won't get to try these on the E38 for my next set of summers (it'll probably be the Kumho Ecsta Sport or Bridgestone Potenza Sport instead, but Tire Rack no longer has the Bridgestones in 255/45 even though they're still listed on the Bridgestone site). It seems like tire availability in that size is dropping way off. Conti dropped it in the ECS02 and discontinued the General G-Max RS in that size, now it's gone in the Indy 500 V2. So to run either of those tires I'd have to buy different front wheels and move to square 275s instead of the 255/275 stagger I'm running now. PS4S comes in a 255/45, but I'd have to move up to 285/40 in the rear (from 275/40) and they're rather expensive.”

Top themes
#sharp steering response#rapid tread wear#poor track durability#wet and dry grip#competitive pricing#rolling resistance hit

Based on 90 community posts

Tire B

Toyo T1S

We haven't collected enough community discussion about this tire yet.

Specs side by side

Attribute A · Bridgestone Potenza Sport B · Toyo T1S
CategorySummerSummer
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available128—
Rim diameters16″ – 24″—
Tread depth7 - 10/32″—
UTQG200 - 320 A - AA A—
SidewallBlack Side Wall - Raised Black Lettering—
Max pressure50 - 51 psi—

Which one should you actually buy?

Bridgestone Potenza Sport

Toyo T1S

Winner: Bridgestone Potenza Sport — better dry, wet and handling. Where the Toyo T1S is ahead, it is by less than 3 points. Toyo T1S rests on little evidence so far (0 tests, 10 reviews), so read this result as provisional.

Pick tire A You want the most grip on dry roads

Bridgestone Potenza Sport scores 87 vs 52 on dry.

Pick tire A Your priority is wet-weather safety

Bridgestone Potenza Sport scores 85 vs 51 on wet.

Pick tire A You enjoy sharp, responsive handling

Bridgestone Potenza Sport scores 73 vs 46 on handling.

Pick tire A You want the longest tread life

Bridgestone Potenza Sport scores 61 vs 57 on treadwear.

Tire A · Bridgestone Potenza Sport
Tire B · Toyo T1S

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Potenza Sport or T1S?

Which is better in the wet, Potenza Sport or T1S?

Bridgestone Potenza Sport, 85 vs 51 on our wet score.

Which grips better on dry roads, Potenza Sport or T1S?

Bridgestone Potenza Sport, 87 vs 52 on our dry score.

Which is more comfortable, Potenza Sport or T1S?

Neither, by our numbers: 58 vs 59 on the comfort score, within 3 points.

Which lasts longer, Potenza Sport or T1S?

Bridgestone Potenza Sport, 61 vs 57 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