Do you mean the inner sidewall? or actually on the inner surface as taken off the rim? The first could be sabotage, the second, a manufacturing defect...

Answered by merlin2021 (expert)
18,145 answers provided

Hi there,

Get the side walls inspected as if the cuts are to deep they will be prone to failure, If ok, the rims may be a bit Rusty where the tyre bead seals and you may need to have them cleaned and possibly return to a tube rather than tubeless fitting, (tubeless tyres can use tubes, so don't get talked into new tyres if you don't need them)

Mark (mhpautos)

Answered by mhpautos (expert)
26,886 answers provided