Goodyear, Dunlop and Pirelli also make run-flats, while Kumho has ... The quietest tyres on the VWs registered 70 decibels (dB), while the BMW was around 67dB. And remember, a drop of 3dB is ...

Are run-flat tyres a good idea? Run-flat tyres seem too good to be true, so what’s the catch? Like with anything, there are a few downsides. Tyres have come a long way since their inception.