Originally Posted by
sosidge
Comes from none of these things.
It is simply because the tyre inserts have an air gap that does not fill the tyre.
As you corner, the inside edge of the tyre rolls over onto itself and wears that fine line.
I've run tyres with a "ring of death" that goes down to the carcass with no noticeable loss in handling or laptimes.
Do not waste your time making adjustments to the car to minimise it. Concentrate instead on even wear in the middle of the tyre and good overall handling.
That is true, if you have a car that Pushes, AND has a lot of air gap, the ring will appear. I have been running the same brand premounts for months now and firstly had the ring of death as my car pushed mainly but as I have tuned the chassis better the ring has gone. You wont see ring of death on guys like Rheinhard and Jilles cars.