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I'm no expert, but I've seen skimmed discs on GL1500s recently. One of them (front) had fine cracks and on another 1500 the back skimmed disc was very blue. It seems that the heat generated from trying to haul up all the weight makes the discs overheat quicker when skimmed and they are not able to handle it.
I guess if you are selling the bike you could skim them and you'd then be passing the problem onto someone else. If you are keeping the bike then just buy another disc.
I'm no expert, but I've seen skimmed discs on GL1500s recently. One of them (front) had fine cracks and on another 1500 the back skimmed disc was very blue. It seems that the heat generated from trying to haul up all the weight makes the discs overheat quicker when skimmed and they are not able to handle it.
I guess if you are selling the bike you could skim them and you'd then be passing the problem onto someone else. If you are keeping the bike then just buy another disc.
