I just found two bubbles on my M sport tires! One on each of the front tires. This sux, now I need a trip to the dealer. Worst part is I have not hit any jarring potholes you would normally associate with damaged tires/rims. I have hit my fair share of normal potholes though. Oh well, I only have 4000 miles, I was hoping to get to 15k or so miles and THEN have to replace them under warranty (I have the 5 year BMW insurance).

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2012 650i convertible, titanium silver, vermillion red, M sport, IAS, ARS, premium sound w/B&O, cold weather, drive assistance, luxury seating, 20's, leather dash, ceramic controls, BMW apps.
2012 750IL x drive, imperial blue/oyster, a finely loaded beater car...
2010 Escalade ESV Platinum nuff said....
2011 550ix (gone)