I got around 7 or 8k out of the angels they still had a good bit of tread left probably another 3-5k but they cupped front and rear and I was leaving for Sturgis so I swapped them out for avon storm 2 ultra
But don't worry the state juvenile facilities are no picnic he'll probably be more likely to get fucked up by the boys there than going to prison because in prison he'd probably be in protective custody for awhile being 18.