People who try to filter their motorcycles in between traffic get very good at judging the gaps they can get through.
When they add panniers to their machine, mistakes can easily be made.
Today’s invention is a pair of lights, possibly low-power lasers, mounted on one’s panniers so that they reflect off cars ahead.
If no spots of light are seen by the rider, he/she knows his whole machine can fit through with no risk to wing mirrors/ side panels.
