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Barry Smith

U.S.
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I have over 30 years experience in the design, manufacturing, and testing of tires. I have served as the technical advisor to the "800" number. I have authored or co-authored many publications - usually without credit. I can answer almost any technical question, but please don`t ask me to compare brands. I probably have prejudices because of my work experience.

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2017-03-21 Tire "cupping":

Jim,    Cupping means quite a few different things.  The easiest way to say this is *irregular wear* - of which there are several kinds.  Most common cause is low inflation pressure and lack of rotation

2017-03-21 lug nnut torgue:

Jerry,    Yes, The standard recommendation is that lug nuts need to be retorqued on alloy wheels after 50 or so miles.     - HOWEVER -     Not only am I of the opinion that what the torque spec ought to

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