To answer the OP's question, I do have problems with Black Ice too and that's why I put on studded tires when it starts to freeze and they stay on until spring. Those tires are good for the general unexpected patches here and there that occur on frozen roadways when there is enough moisture in the air to condense on the road and freeze. They help to keep you in control but you still have to be vigilant and slow down when you suspect patches of it. If there is a lot of it everywhere and cars are sliding all over then I do not ride the bike in those conditions. It's the same thing as when there is a torrential rain storm or a blizzard, stay off the bike it's too dangerous to get hit and run over or even killed.