This video shows how I upgraded the front brake of my Kawasaki S1 550 four cylinder from its original single disc to twin disc retaining a factory look.
The S Series Kawasaki triples did not have calliper mounting lugs on the left hand fork like the H Series bikes so I convert the left hand fork slider to fit on the right with the calliper mounts pointing forward and repositioned mudguard mounting lugs.
Hope you enjoy the video

regards

Allen