I wanted to stop hitting the rev limiter while I train with the bike on my shifting technique. Hearing how the motor sounds at 9000 and not having to worry about always hitting the limiter would make it much easier to get my throttle shifting experience done. Then when I can shift just a hair before 9,000 without any mistakes, I can easily run it back up to normal. Kind of a safe way to learn things. I can shift a car like a pro, The sleds run an auto setup so you only control he throttle. I want to dominat my bike and right now it is winning!!!!! It's a BKing but it still bounces off the limiter if I make even a tiny blip wrong.........