Bigtallfatbloke said:..get some Christmas tree lights with a flashing gizmo and wrap them around the frame.
Better than reflective tape, serious
I don't know the science, but I reckon that all reflective stuff and high glo stuff will get absorbed by the human brain and forgotten about
Get some decent lights. If you want you can end up looking like Locutus of the Borg, 7 of 9 or whatever