mmm let me guess .Aluminum rims and you spend a bit of time off road.
We in the industry call it knife edging,aluminum is soft and the constant flexing of the side wall wear down the aluminum bead area.Very common problem with aluminum rims.This can cause a very dangerous situation of sudden loss of air pressure because the tire which seat against the bead pushes the rim apart because of loss of strength of the rim bead area.
__________________
the more people i meet the better i like my dog
|