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bwilson4web

Well-known member
Supporting Member
Joined
Apr 30, 2016
Messages
808
Location
Huntsville, AL
Hi,

As delivered, the tire size label was buried under the shipping bill of lading:
EP600_175_60_19_010.jpg


Left is the inside. I used a white body powder and clear wrapping tape to measure the widths:
EP600_175_60_19_021.jpg

The outer grove has a wavy inner surface that made it difficult to get the micrometer teeth into the gap. After a nap, I may have more luck.

The inside tread grove is obviously shallower than the other two:
EP600_175_60_19_030.jpg


Here are my initial measurements:
EP600_175_60_19_040.jpg

Notice the outer grove has an unusual pattern in the bottom.

The next two show how the inside and outside are identified:
EP600_175_60_19_050.jpg

EP600_175_60_19_060.jpg

It is all but impossible to get a tire shop to mount them wrong.

Here is the tire size embossed on the sidewall:
EP600_175_60_19_070.jpg


A close up of the inside and middle grove shows they have a uniform surface:
EP600_175_60_19_080.jpg


Here is the middle grove with a wear bar. The outside grove has that unusual pattern in the bottom that complicated getting width measurements but the depth appears to be OK:
EP600_175_60_19_090.jpg


Bob Wilson
 
Thanks for posting all these detailed pictures. Note that only the center groove has wear indicators and this is where the wear depth should be measured. This is very important for lease returns as some inspectors would want to measure all 3 and the inside will not pass.
 
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