Rapala Knot Originally developed for use with Rapala brand plugs, this loop knot allows maximum action. The Rapala Knot, for example, gives the lure a wider latitude to move when precise control is not as important. This video guide on how to tie a Rapala Knot is shown here to help all of our guests that want to learn how to tie Knots are your weakest link to the fish, so inspect knots for damage while fishing Retie knots after catching a fish