Actually the original caliper brakes on my Schwinn Speedster with its smooth chromed steel rims were pretty much like that. In dry conditions braking was poor and in wet conditions it was non-existent. I rebuilt the wheels with SA drum brake hubs (3 speed IGH rear), so now I have consistently weak braking in wet and dry conditions. Needless to say, I ride this beast very cautiously. I've also tested a Trek with roller brakes, which are pretty bad as well.