Stretched Tire got unmounted

[Michel]

Hey guys,

so I'm running a 245/35 on a 10" rim so it isn't one of those crazy stretches, but basically the other day my tire came off the rim (dismounted itself). I had this wheel refinished about a month ago, could it be that it was not properly remounted? What can cause a tire to un-mount itself this way? The tire was basically in brand new condition too...

thanks,
Mike