Summary: I just got them Road Force balanced. 1 tire is under 10. 2 tires are under 28 and 1 tire is 38. The best possible balancing machine can not properly balance these tires. Do not buy them as they will shake constantly and for ever... I regret not paying $100-$150 extra to get a much better tire...
Summary: I bought these for my 1 series, after being quoted ridiculous money for the bridgestone run flat which came off the car, and also not being happy with the harsh ride of the run flats. My local garage recommended a none run flat and the Nankang seemed the best option. I was slightly cautious as I had not heard a great deal about the NS-20 pattern, however I cannot fault them. I have recommended these to friends on my local BMW forum, and they have also agreed.
Summary: For a daily driver to and from work, store or general town driving in both wet and conditions it's A ok tire but if you want performance in fast turns or putting down the hammer this is not the tire.
Summary: As I visited this forum before I took a chance and bought Nankang - quick feedback after 2000 km. It understeers like mad and when I tried some "advanced" manouvers the rear tires felt like driving on 155/80/17. I have increased preasure in my tires (3 kg cold tires) but it does not help. After talking to experts I now understand my choice of "V"-tires (270km/h) was stupid. They are much "softer" than W or Y.
Summary: These came on my new alloys and at first they didnt grip at all but this is usuall down to the moulding deposits left, after 2000 miles the tyres were stillthe same, throw the car into a roundabout at 30mph and understeer. No matter what i tried to do they would understeer massivly, even going round roundabouts at 15 or 10 it felt like the car would roll onto the sidewall and be on a think layer of ice. i DONT recommend these tyres at all.