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      05-09-2011, 10:50 AM   #1
Z4-Archon
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Drives: Alpine White Z4 35i
Join Date: May 2008
Location: Texas

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New Wheels (135i BMW 313s - 18in) and Tires

Hey folks,

Finally got new tires on a set of BMW 313 wheels. These are 18" rims instead of the Z4 313s, which are 19". I had the 296s on the car and combined with the run flats the back roads were pretty brutal.

I was worried about the offset of the wheels vs the stock rims and had purchased 2 12mm offset plates for the front wheels. It turned out that I didn't need them, they sit in a little bit more than the original wheels though. There is no rubbing and I still think they look good on the car.

I had Michelin PS2s put on the new wheels, they are a world of difference from the original run flats in terms of ride compliance. The grip seems great too, but I haven't really pushed it yet. We will see if it still understeers a bunch in the corners, which I do expect it to. Oh, the PS2s I got were 225/40 on the front and 255/35 on the rear.

The fit on the front brake calipers was pretty close though, but the stock 18s fit the same way as well.









Ron.
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