This picture is not clear but there is excessive wear on the shoulder of the tyre above
This is just another side of Bears Tyre Tracker. Left untouched the outer rib would keep wearing excessively losing many tens of thousands of kilometres for the operator. Servicing this type of problem is part of tyre suppliers obligation to the client. It generally ends up in the “TOO hard basket” by tyre fitters.
Stay tuned, watch this space!