New wheel specs

[Danny1388]

Hi all,

I recently picked up a 640ix Convertible and noticed the rear wheels were a bit skinny. Just curious to see if anyone has ever fit a 21" x 11"-11.5" width for the rear. If so, whats your offset and spec for the front and rear wheels/tires.

I currently have an X5M and just love the aggressive stance of the beefy tires

Thanks all!