S550: New Rear Tires (Again)


As the rains returned to California, I noticed some loss of rear traction when hitting standing puddles at speed. A look at the tires showed that, although the front tires were fine, the rear tires had nearly no tread left. How this could be is a mystery, since I had these tires replaced six months ago and have driven less than 4,000 miles on them since then! Theories include that I forgot to get an alignment, which contributed to rapid wear, or that these were defective tires (but, of course, no manufacturer warranty on these pricey Pirelli run-flats). 

Whatever the reason, $1,100 later, I've got new rear tires again. Oh, and this time I made sure to immediately get an alignment done (for another $130). 


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