PROPER TIRES FOR THE Z4! NOW A DIFFERENT CAR

Valor1

Member
When I bought my Sdrive35i (manual gearbox) she had new Bridgestone tires from the BMW dealer and ~12k miles on the clock. Mycar looks like the Z4 at the top of the forum webpage. First, I didn't care for the ultra low profile look. Then I read there was a lawsuit about these 19" wheels failing. Well, sure! Tiny rubberband tires on LA roads and the thing rides like a rock with factory recommended high pressure.

So, after much research I came up with the lightest and most comfortable high performance tires I could find. Installed Continental Extreme Contact DW tires 245/35 front and 275/35 rear. Not only does the car look better and more aggressive, but it now rides with the smoothness of my SL Mercedes. Gone are the jarring impacts and most of the creaks one hears with the hardtop up. So smooth!!!!

Pushed into a turn the car grips that much better with these fatter tires!

It's a win-win all the way around! I can't recommend this tire swap enough. I ditched my brand new OEM tires for these and couldn't be happier!
 

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You went very wide tyre, I am surprised - I've gone 1 up and it rubs (but my offset is different). Looks good though and amazing colour
 
Thanks. Actually, I mounted originally a 285/35 and it JUST fit. Only the Continental DW is rated at 285 mm tire on a 19x9. The 275 so far works like a charm! The tall tire cures what all the roadtesters say is a key problem with the Z4....in that it rides too hard. Amazing the transformation. Wider tires and taller tires mean even larger tire patch so she really handles like she's on rails now. Body leans so thinking about some sway bars....
 
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