For the most discerning enthusiasts, Takegawa 138cc Desmo Twin Cam Complete engine offers the highest level of technology available for the 4 stroke mini market. Desmodromic actuated valve train combines increased power, reliability, and the highest available rpm by completely removing valve spring float from the equation. Takegawa Desmo factory built engines are available in many configurations and pricing fluctuates greatly. Please use this listing as reference only, and contact us direct for your custom build.