I had a car where I could let some air out of each tire so that the car retrained. Which bike was it? Later I got a newer machine that didn't have this option and needed a tool so I decided to give it a try. Once I figured out how to properly hold the tool on the tire's valve stem, it was very easy to retrain all the wheels. It's also a lot easier than deflating some air and then refilling it, so I'm glad I have this tool now. I have GM cars so can't comment on how well they work with Ford settings, but GM works fine.