I have driven them for a few thousand kilometers now and very happy with them. Paid 40€ per unit and everything feels good for me. I have to say that i have calm and easy driving style so i can not give a real answer about grip and performance, but for driving normally in traffic, i would recommend these.
car: Ford Focus 1.6 74kw

Bought them for 30€ ea in 2019, first look was cheap, but after some time I changed my mind, still kormoran is made in the same place as Michelin tyres, so the wear off and tyre responces are too good according to price, i lasted 50k km whit one set of these, even though the tyres was still good for driving (was leaft5-6mm), but still they don't like agresive driving

I have these tyres for about 8000 km and 8 months on a Ford Mondeo mk4 1.8 tdci.

On dry roads they behave very well. Low noise and great grip with great cornering stability.

On very wet roads the feel on the driving wheel is light. I drive more carefully then.

The tires were made in Czech Republic.

They cost the same as Chinese tires but I feel more secure with Kormoran as a budget buy.

They already have a bit of wear on them. Perhaps they will last 50.000km.

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Worn down completely after 6,000 miles (10,000 km)
The worst tyre I ever put on my car.

Fitted two of these on the front in a hurry because they were cheap. Nothing wrong with the grip under most conditions, but they seemed agricultural compared with my previous Toyos and the ride was harsh. They were also very noisy, which got tiring and I was almost pleased when I got a puncture in one and was able to replace both with Khumos, which are superior in every way.

Terrible! Fitted to the front of Civic Type S and whilst they're just about OK in the dry,they're appalling in the wet. No grip whatsoever, and wearing wrinkly as well. Avoid!

Definitely beat the hell out of these tires on a daily basis and they took it well their grip on dry pavement is comparable to tires that are way more expensive with minimal road noise. The only area where they suffer is when the road becomes wet. They hydroplane very easily and can become borderline unsafe in standing water. Tread lasted pretty well although I didn’t use them for more than a year or so. I would get them again for a summer vehicle but if you live somewhere with bad weather I would recommend something with more wet traction for daily driving

Excellent tyre, road noise is minimum and give a good firm but comfortable ride in all conditions ,these are fitted to a Mercedes S class limousine long wheel base and are the best tyres I’ve had , better than the premium brands . The car has been driven in all conditions other than deep snow and fully do what is required .As a former professional driver who has had to drive in some awful weather conditions I fully recommend these tyre and would certainly buy again and again. Don’t waste money on labels that are not as good , it’s money down the drain, these are made in the same factory as Michelin tyres!!!

Fitted these to my Skoda Fabia. They replaced Uniroyals. The Kormoran seem fine. Little noise. I'm not a fast driver.

Worst Tyre I bought ever. The Tyre didn't last for 6 month, and generated unbelievable noise... I sent my car to the mechanic because I tought the niloise from the car. How we it came from the tyres... Don't buy at all. It is worst that the worst low budget Tyre.

These tires were a part of a rim/tire combo when I was shopping for rims, since they were included in the price (brand new), decided that I'll take them. Was skeptical at first, but immediately was surprised how quiet they are both at low speeds (city) and higher speeds (highway/motorway). Now, in terms of comfort they are really good, but those few times I've pushed them a little they haven't responded well, slight understeer, low confidence in the corners, might be due to my car being a heavier Volvo, but on the other hand when emergency braking was involved the ABS didn't kick in and they handled the situation very well. All in all I would say that they are more of a comfort, relaxed driving style type of tires and if you're not looking for anything more then they are the way to go. Wear is minimal, but then again, not that many kms covered this summer, so difficult to judge just yet. Notable mention that after just this summer (2021) they have started to crack at the top of the sidewall, so that's a bit of a concern for the longevity aspect.

Driven for 1000 km. Very low control over the road. Flimsy feel of road. Don't feel safe driving high speed (140 km/h) Not recommended.

I've had these tyres fitted to the wife's car for about 2 years now, shes done about 8000 miles on them and they've still seem to have plenty of tread left on them especially the rears. all aspects of the tyres seem very good for the price. I don't see the need to spend silly amounts of money on tyres when these ones are more than sufficient and with the added bonus of Riken been part of Michelin and in my opinion the same quality.

Very good tyres for their price...

Riken Road Performance is very good tyres, for 40€ a one piece .