If your motorcycle begins to weave while you are riding over rain grooves or bridge gratings, you should:

The weaving motion that occurs when a motorcycle rides over rain grooves or bridge gratings is generally not dangerous. If you experience weaving when riding over one of these surfaces, simply relax and proceed straight across the grooves or gratings at a steady speed. Trying to compensate for the weaving motion by zigzagging is more dangerous than riding straight.

• Relax, maintain a steady speed, and ride straight across the surface.
• Tighten your hold on the handle grips and increase your speed to get past the hazard.
• Travel in a zigzag motion.
• Ride on the shoulder instead of on the grooves.