I just installed the power controller with the switch tonight on my F800GS...I am floored! IT'S SO MUCH SMOOTHER at low RPM, I rode the bike from almost a crawling pace and very slowly accelerated to about 20 mph in the first three gears! I love it! I am going to ride the gravel mountain roads in the morning!
This is probably the highest return I have ever gotten on a motorcycle farkle for the money spent