No, I can't recommend run flats. Have you considered non-run flat tires? Many of us on the forum switched over and found a remarkable change in driving.
Originally Posted by Kohn
Can anybody recommend replacement run flats (18inch) for my Z4?
2006 525 xi, Orient Blue Metallic, Beige leather, Dark Poplar trim, Premium Package, Cold Weather Package
2012 Z4 35i, ED 2/24/12, Melbourne Red Metallic, Black leather, 6 MT, ///
M Sport, Premium Package, Premium Sound Package, Cold Weather Package, Nav, Comfort Access, Alpine HID Angel Eyes, BMWPedals pedal covers, stubby antenna, Extra Enjoyment Package