I ran into an issue yesterday when swapping out my current 20" wheels for a new set of 20" Vorsteiners swapped. Wheel specs between old and new are the same so I was planning to use my existing Continental ExtremeContact DWS 275/30/20. BUT, when they pulled the tires off the outgoing wheels they discovered that the side walls were deteriorated (cracks and debris) and would need to be replaced. These tires are only ~year old with maybe 10-15K miles on them.
Under inflation of the tires is the only thing I can think that would cause this premature degradation in the tire side walls aside from a mfg defect. I've been running 35-38 psi on the tires.
Question: Is this pressure too low for a 275/30/20 tire?
A new set of the current DWS 06 tires were ordered and will be mounted today. The Discount Tire computer recommends pressures of 32 front, 38 rear...
What pressure are the other allroad, 20" wheel guys using?
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