The Two-speed transmission sets the standard The two-speed transmission sets MB in a superior class. MB Sports understands the physics of a wakeboarders' drag behind a boat. It can wear on a transmission. Our ingenuity of developing the two-speed shift, allows the boat to plane quicker and minimize fuel consumption. This minimizes wear and tear on the transmission and will allow lower fuel consumption. It's also just plain fun. This patented technology is fully tested and reliable.