If this helps for an example. I have 20,000 miles on my stock 06 4.8is that I drive pretty easy as far as the corners and what not. Naturally my tires sit like yours and they are showing no additional wear to the insides, in fact they look great.

The middle of the tire is going to tell when it will be replaced long before the inside. This is on the stock Michelin 20's.

Negative camber :thumbup:
http://i181.photobucket.com/albums/x...f/DSC01315.jpg

middle wear out faster with Michlins? why ? so if middle worn out till wear bars,and even the sides are close to new,you still need to replace tire or what?????

good luck. what bmw says is a rear camber adjustment is really a toe adjustment. check the front and the frt to rear when your done. chances are you'll have to find a hapy medium cause you won't get them both at 0 negative camber.or positive for that matter. yes, i've been there and tried that.

i run non directional tire so i can flop them around on the rims when the inside starts to wear. also a larger diam. tire will increase the neg camber.