Kumho Ecsta PS91

Benefiting from the company’s enviable motorsport achievements, PS91 is aimed squarely at supercars and such mouth-wateringly quick passenger saloons as BMW M cars, Mercedes-Benz AMG models and Audi RS ones. The entire range is Y or (Y) rated and offered in sizes from 18 to 20 inches in diameter. The focus is on maximum grip and braking performance in the dry, combined with outstanding feel in all conditions.

Tyre review data from 43 tyre reviews averaging 70% over 311,710 miles driven, and 8 tests with an average result of 7th.

Dry Grip 82%
Wet Grip 72%
Road Feedback 76%
Handling 74%
Wear 55%
Comfort 72%
Buy again 62%

The Ecsta PS91 is ranked 27th of 33 Summer Extreme Performance tyres.

Tests Included

8

Best Result

4th

Worst Result

10th

Average Result

7th

Latest Tyre Test Results

2023 Sport Auto UHP Tyre Test
8th of 11 tyres
  • Decent water drainage, acceptable cornering grip and low load change reactions in the wet. Good deceleration values on dry roads, very quiet passing noise.
  • Longer braking distances and significant understeer in the wet. Sluggish steering, increased rolling resistance.
  • The PS91 is a quiet tyre but has weaknesses in wet and dry grip.
View Full Test >>
2023 AZ UHP Summer Tyre Test
8th of 10 tyres
  • The Kumho Ecsta PS91 SC doesn't do anything wrong, but it's no longer up to date - a successor is in the works. Currently, however, the low price is the strongest argument for this tire.
View Full Test >>
2019 Tyre Reviews UHP Summer Tyre Test
7th of 8 tyres
  • Very quick on first dry handling lap, with good steering feel and car balance.
  • Tyre overheated very quickly in both dry and wet handling, which changed the balance to high levels of oversteer. Very poor wet braking. Average levels of comfort.
  • The Kumho PS91 initially felt like a strong tyre with good steering and balance, but this soon changed as the tyre heated up, resulting in instability and low levels of grip.
    Conditionally Recommended.
View Full Test >>

2023 Tyre Tests

2019 Tyre Tests

2017 Tyre Tests

2015 Tyre Tests

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Size Price Range  
235/35 R19 £143.21 - £143.21 (1 Prices) Compare Prices >>
275/35 R19 £175.40 - £175.40 (1 Prices) Compare Prices >>
Available in 38 tyre sizes - View all.

Top 3 Kumho Ecsta PS91 Reviews

Given 53% while driving a BMW 320D (255/30 R19) on mostly motorways for 7,000 easy going miles
Fitted this Kumho Ecsta ps91 on rear axle of my 2010 e90 2.0D Fitted in end of April 2021, taken off in start of October 2021, driven 12 000Km, and they are spent to the end, bald.... Wear is absolute disaster....
Helpful 56 - tyre reviewed on October 6, 2021
Given 23% while driving a Volkswagen (B8) 1.4 TSI (150 Hp) DSG ACT (235/35 R19) on a combination of roads for 400 miles
Put them on my Golf R after reading some good reviews. The tread depth seemed a little shallow so i checked it with a digital depth guage. 5.66mm on the inside grove for a brand new tyre this is a rip off. Checked with Kuhmo and they said the new tread depth should be 7.1mm. returned them and swaped them for Dunlop. Kuhmo what a rip off. I will never trust them again and encourage others to check their new tread depth before putting them on the car.
Helpful 39 - tyre reviewed on October 11, 2022
Given 97% while driving a Vauxhall Astra VXR (245/35 R20 W) on a combination of roads for 3,000 spirited miles
Replaced Pirelli P Zero k1 tyrew with the Kumhos. I am realy happy that i made the change. The tyre is better on dry and wet in lower temperatures that the p zero. The p zero is slightly better in wet on warm days, but the kumho has a little bigger level of grip at dry, and does not need that high temperatures. Allso the tyre is realy good when puahed hard, doesent lose the grip level by heating up, the level ia going higher and higher. Perfect for everyday and fast road curve driving. Not tested on the race track, but it should perform ok for a street tyre. The stif sidewall is allso a good thing, much stiffer than p zero. I can highly recommend that tyre, they car has more overall grip than with p zero. Wear looks also ok for now.
Helpful 118 - tyre reviewed on October 1, 2016
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Latest Kumho Ecsta PS91 Reviews

Given 58% while driving a Volkswagen Tiuan R Line (255/45 R19) on mostly motorways for 700 average miles
Had Pirelli scorpion verde originally on my SUV which were a high performing tires. Had to change due to wear and decided to give the Kumho a try. Ill be brief, this is a very sluggish tire which will make your car feel heavy and demand more power during acceleration. If you’re looking for performance tires this isnt the one. This is more of a day to day commute tire.
Helpful 0 - tyre reviewed on September 8, 2024
Given 49% while driving a BMW E92 M3 V8 (275/35 R19) on mostly town for 6,000 average miles
Purchased these for my 2008 BMW E92 M3. They were recommended on an M3 facebook page by multiple people as a decent value alternative to Michelins etc. Some people even said they were better than the flagship premium brands, so thought they were worth a go!

Initial impressions were ok, but over the space of a few weeks started to notice their flaws. I found that even when you engaged a little bit of power (not flooring the pedal) the traction light would regularly light up. This was not the case with the outgoing Michelins PS4's. I also found in the wet they did not give much confidence. In dry condition they are improved, but certainly not in the same league as Goodyear Eagle F1's, PS4/PS5's etc. That I could somewhat live with given their price...but regretted not buying Michelin or Continentals.

What I have found really poor though is the wear....and reading the reviews here I am clearly not the only one! They have only lasted about 6k miles and it is not driven particularly hard. This is roughly half, maybe closer to a third of the life of the outgoing Michelins. Having also had PS5's on a Mercedes A35 AMG that have lasted 20k miles and that is AWD, along with PS4's on a 335d Tourer Xdrive lasting 17k miles, these fall seriously short.

So therefore they really are false economy. Not only do they somewhat impede the performance of a powerful car (and that's what they seem to be aimed at), if they only last 30-50% of that of a Michelin they work out to be quite expensive!
Helpful 6 - tyre reviewed on April 24, 2024
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Given 74% while driving a Holden 2016 VF SSV Redline (275/35 R19) on a combination of roads for 100 average miles
Bought these for the rear of my VF Redline Commodore.
They are quite soft and grip well and comfort wise are great value for money.
I have only driven in the dry to date so cannot comment on wet grip.
One thing I didn't like is they are only 265 wide when inflated. They are 275 at rest off the rims but are only 265 when fitted to rims and inflated.
A little misleading and as such I won't be buying them again. For spirited weekend driving in the dry, they are good value for money.
Helpful 7 - tyre reviewed on April 15, 2024
Given 60% while driving a BMW 535d M Sport (275/35 R19) on a combination of roads for 15,000 spirited miles
After 12 months and 15,000 miles of aggressive use on my RWD 2 ton saloon, I've come the the conclusion that:

Due to hard sidewalls and compound it is quite firm, you will feel the ruts in the road.

Dry use is fine, sticks to the road very well - especially when warmed up - no major complaints in dry weather (which isn't very often in the UK).

Wet/greasy use is different story, on the rear wheels of my 300+bhp diesel barge it is quite skittish. Accelerating off roundabouts - even at a normal pace - you feel little-to-no reassurance that the back-end won't try to kick itself out.

Take the above information as you will, but I won't be buying these tyres again for a daily runner.
However, I definitely would do if it was for a track car only used in summer.
Helpful 6 - tyre reviewed on March 1, 2024
Given 36% while driving a Dodge Challenger (245/45 R20) on mostly country roads for 0 average miles
Used only in summer with roughly 5 thousand miles and failed to pass inspection the following spring. Tires didn't even last long enough to get rotated. I'm out on Kumho's and could have got this with the cheapest available tire. Even a summer performance tire should last a few years at low miles.
Helpful 22 - tyre reviewed on April 8, 2023
Given 71% while driving a Porsche Cayman (235/35 R19) on mostly country roads for 3,700 spirited miles
Used them on my Cayman from new to legal thread thickness. Definitely NOT a UHP tyre from a grip perspective, as you can easily overheat it on a normal twisty mountain road. When warmed-up the grip is almost ok, steering feeling is also good, but when pushing after a while you loose confidence, feeling and grip. Tested once on track and it is absolutely the wrong tyre, as soon becoming unpredictable (spinning at same speed, same corner at second lap). You can buy it for a normal everiday usage of the car, if in you size this is the Kumho offer, as this is a very cheap tyre. Avoid it for sporty road or track usage.
Helpful 27 - tyre reviewed on September 25, 2022
Given 64% while driving a Audi Audi a5 2008 2.7 (Remapped) (255/35 R19) on a combination of roads for 16,000 spirited miles
4 new tyres fitted. Fronts needed replacing after 16,000 miles.
Helpful 37 - tyre reviewed on June 13, 2021
Given 34% while driving a Audi A6 2.0 TDI (245/40 R18) on a combination of roads for 10,000 spirited miles
At first i was very impressed with the design and the similarities between Michelin PS4 and PS91. Dry grip was very good but that s the only good thing about this tyre. Sidewall - the stiffness is incredible, you can barely fit them on the rims. Confort - it laks confort, you can feel every bump, big or small, terrible. After 2 years of moderate use 8000k km each summer visible cracks between treads appeared, with is very dangerous thing. On wet they are very slippery, i lost control a couple of times. So then i went for Michelin PS4 and Vredestein Ultrac Vorti which i think is the best tire i had ever had on my Audi A6
Helpful 39 - tyre reviewed on May 5, 2021
Given 80% while driving a BMW X3 3.0dA (275/40 R19) on mostly town for 3,000 easy going miles
InI tried kumho ps91. The tread life is very short. I put on my BMW X3. 8 months later I hv to change. My wife drive very careful with kids. I m a bit dissatisfied
Helpful 31 - tyre reviewed on December 14, 2020
Given 76% while driving a Porsche BOXSTER 2.7 (225/45 R17) on a combination of roads for 6,000 spirited miles
Boxster 987. Came with these tyres on but one of the rears had a screw in it so replaced both rears about 6000 miles back. grip has been excellent in both wet & dry, but then again, I never push n the wet. Mostly daily driving with occasional fast B-roads, my rears are nearly done after 6000 miles. I'm not sure if that's my driving style or the compound of the rubber. Either way that's a bit dosappointing in terms of wear.
Helpful 37 - tyre reviewed on November 19, 2020
Volkswagen (255/40 R20) on mostly country roads for 10,000 average miles
Initially I was very pleased with these tyres. They handled much better than the pirelli tyres that came on the car and overall made the car much more stable in corners. Fitted to the fronts when the rears were nearly at the end of their life, I have now found myself replacing all 4 at the same time. Well, this would be the case if tyres hadn't split along sidewalls rending them useless.
Helpful 44 - tyre reviewed on July 15, 2020
Given 61% while driving a Audi 2.7 TDi S Line Saloon (255/35 R19) on a combination of roads for 12,000 spirited miles
Seemed like a great value midrange tyre initially, but wore out very quickly. All 4 where put on with in a month of each other and only last 12.000s on the front. Maybe 30% left on rears. , while the fronts needed replacing. So I've replaced them all for Dunlop sportmax GTs. Only £10 more per tyre.
Helpful 36 - tyre reviewed on May 8, 2020