From time to time I think all of us come upon a short stretch of roadway that consists of open metal grating, usually on a bridge. At such times I can feel my tires lose their bite on the roadway causing the bike to wallow slightly. This to me is a very uneasy feeling. It has been my practice to let the bike decelerate as I cross the grating. Am I doing this right or should I maintain constant speed or even accelerate over the grating?