My two have a manufacturing defect that is worrying to say the least. See images.

These replaced Continental premium tyres. Generally they seem pretty good but there are time the car loses grip and bring on the traction control light, in slightly damp conditions it wouldn't with the Continental. That said they are a pretty cheap tyre.

same kumho problem... balancing & egg shape. 245/45/18 100Y XL
I've always used kumho because the price well reflects in proformance if only they didn't need constant rebalencing.
I've had 4 duff pairs, ku31 x 2 pair, ku 39 x 2 pair that had to come off in the end they were so bad.
No amount of balencing can sort an egg shape tyre.
These new ps71 are very soft, squishy, feel like running on 20psi with 30g wheel wobble even after twice rebalencing them & 1 of them is egg shape.
I am worn out with trying to get them right & think after years of kumho on various different cars I'm giving up on them.
Changing to Dunlop.
I always feel bad going back to the shop to moan they must think it's me lol but kumho have let themselves down & I will say so.
PS71 is more expensive, lower spec & lower quality, not for me, I like a tyre to be not thought about coz it's getting on with it's job instead of feeling there's a 60mph side wind blowing me around & the steering wheel hammering out of ny hands not to mention the amount spent on rebalencing & hanging around tyre shop waiting for my turn.

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A little bit disappointed with these tyres. Bought them for a Citroen DS3 1.6 diesel (90hp).

I do mostly driving up and down the Peak District for my commute, so there's a lot of twisty roads and lots of braking and acceleration due to the hills.

Grip is great in the dry and wet, and have good aquaplane resistance on a straight line. Decent grip around the corners, but can occasionally trigger the traction control if you accidentally floor it mid corner. Fuel economy is decent, and from my experience, it has fairly low roll resistance. Braking distance is average, but stable.

However, I can see why these have good performance for the price, and it's because of the poor wear.

Bought these with 7mm tread new on all corners. They are already down to 3mm at the front and 6mm at the back, after only 10,000 miles.

They were £86 per tyre when I got them. Would probably buy them again, if I was strapped for cash. But might be better to get something a little bit more expensive, but with better wear resistance.

Premium tyre attributes for good price. Wet grip is great, tyre construction is very good. Sidewall stiff enough for relatively lightweight Cooper S. Michelin Pilot Sports are better, but if budget won't stretch, these are a good substitute.

Surprisingly good tires, both on dry and wet roads, I've never had a problem with braking, skidding, or aquaplaning. I can only recommend them.

Great tyres for the price! 23,500 miles and 15 months driving before they were down to minimum wear markers and needed replaced, which on my BMW F11 520D rear wheel drive seems to be about average life expectancy. Tyres never lost grip once, wet or dry. I would have preferred if they lasted at bit longer, but I tow a caravan about in the summer months which probably shortens their life.They seemed to get a little noiser when they were well worn down.

I had limited budget and I study abot two weeks wich tyres I will buy...read many tests and I choose Kumho ps71 after Pirelli p7 cinturato.I will just say this tyre is underrated.Excellent dry grip and very good wet grip,handling and noise.I love this tyre after 20k km and sure I want buy them again.My car is Civic mk8 hatchback.

Great budget tyre, been using these daily on a 310bhp Clio 4 RS and they run great. Millage is an average of 30 miles a day. Wear rates are great, fronts going to half in 12 months so rotated them for the rears. Have used them on track also, and even though they arent "slick" level performance, with the pressure kept in check they were great to drive on. Super progressive on break away and easy to balance in the corners. Will defo buy again. (car selection section not working)

The tires are quiet and the grip is very excellent.

Car this tyre was fitted on was a 2000 NB MX5 with Teinz coil overs and white line sway bars set to their stiffest setting.

This tire is great, except it's one glaring flaw: once grip is lost it takes longer to regain traction than most if not all tires in its class (dry and wet). i have this on personal experience and accounts from a handful of other people who have a PS71 fitted.

The PS71 is a good Tyre if you get it for a cheap price. I payed $560 Aud for a 205/45/16 set (incl fitting and balancing) with no discount and I have reasonable confidence that no other tyre will come close to the PS71 at this price point or close to it. (the good price does not seem to scale with an increase in size unfortunately)

while you can hustle the PS71 on a twisty road its lower level of grip relative to other options in its class on the market, hesitance to regain grip after it is broken and relatively soft sidewall make it a subpar option to other tyres available in class and certainly to semislicks (where hard street and track driving is concerned). Make no mistake though, these have tires have more than enough grip for driving within the bounds of the law (to get them unstuck you would need to be driving in a manner your local law enforcement would be unimpressed by to say the least)

as for driving feel, it is okay but not great. it feels pretty numb but I am yet to conclude if it is an alignment or tyre issue

If you just want a competent, safe, mostly reliable performance Tyre for daily and spirited driving, this will do it for you. That is until you get into a situation where you loose grip. not to say that it does it to a degree that is dangerous, but when you unintentionally loose traction every moment longer the tyre takes to come back is a moment that could save you, and on this reason alone if you have a Michelin pilot sport, continental MC Tyre, Goodyear eagle f1 available in your size I would strongly suggest paying the premium for those options. If you stay at 8/10ths and below and have ABS I wouldn't as much about the beyond limits grip.

TLDR; If you never flirt with your cars limits, cannot find a better option for your wheel size and/or need just a 'good enough' Tyre to have until you get another set of rims, this tire is a strong contender. however if you hate the idea of a tire that behaves badly past the limits of grip, I would advise looking elsewhere.

Amazing mid range tyres . Give you amazimg grip especially in the wet. Also a really good looking tyre wall .

Decided to leave a review as this very site helped me with tyre choice.
Recently replaced 6 year old P Zeros with PS71’s all round on my Golf GTi 7.5 and what a massive difference. Admittedly the P Zeros were quite old, and starting to crack, but still had minimum 5mm tread.
The ride quality is massively improved. Running exactly the same pressures, the car feels more refined, quieter, and less crashy across road imperfections. Grip levels are improved, especially in the wet, although the P Zeros had clearly gone off.
At £110 fitted per corner for a 225/35/19, I’m very impressed and will certainly buy again if wear rates are good. While I don’t tear about needlessly, I do press on now and then and the PS71’s give me confidence to do so.

I have them placed in a Fiat Cronos with 17 wheel, the truth is that coming from the Pirelli P7 Cinturato, these Kumho PS71 actually pleasantly surprised me considering that they are similar in price to the Pirelli, they have low noise, excellent grip. I generally travel between 150km/h and 170km/h. The Pirellis do not provide security at all, these Kumhos transmit a feeling of grip and security at high speed. Now I put them on my other car, a Sandero RS that came from the Michelin Pilot Sport 4 and I feel better comfort but when I push them to the limit they are good but not as good as the Michelin. Talking about cornering at the limit.

These tyres were already fitted when I bought my car and are brand new (front axle). They are perfectly adequate and can easily handle the 190hp of my Seat Leon. Traction is good, as is handling, and comfort seems to be quite good too. These are a sporty tyre, and the car does feel quite agile and well connected to the road. The sidewalls even look pretty good I think. I can reccomend these, especially at their low price point, but will likely go with a more premium offering when the time comes to replace them.