Takegawa Desmo Twin Cam 125cc SCUT bore and stroke kit for Honda CRF50 Monkey Gorilla. New kit for 2012 offers the easiest installation ever! New crankshaft design and patented skirtless cylinder and piston means no case boring required. Takegawa Desmo Twin Cam cylinder head design takes valve float out of the equation offering more power potential and higher rev capability than any other head on the market. Kits are available in standard 2 bearing crankshaft support as well as Takegawa's innovative 3 bearing support for added crankshaft strength and reliability.