Depends more on the bike - Some of them you'd have to go well out of your way to properly abuse them and simply thrashing them around without cleaning them isn't enough to do that, especially if the POs only had it a short while, ie not long enough to get complacent about it.it depends on the owners? depends whether you get ones that treat it right or thrape the hell out of it,more owners means more chance of it being thrashed or neglected