Originally Posted by
Hypno Toad
...It is damn hard to see (it is not white at all) and the uninitiated/inattentive will be caught off guard - and at the wrong time, when your hitting the brakes for a red light.
A while back we had a sunny weekend of above freezing which melted some snow and created some runoff. Then we had a night of sub freezing temperature. When we got up Monday morning, my driveway was all iced up. Not thick, not white, just a very thin layer of ice that you can't see and that was impossible to walk on without taking very small steps.
But riding was no problem at all just as long as you anticipate ahead to make sure you are braking moderately.