Power Ratings for CVT Drives

A continuously variable transmission (CVT) also known as a shiftless transmission single-speed transmission stepless transmission pulley transmission or in case of motorcycles a 'twist-and-go' is an automatic transmission that can change seamlessly through a continuous range of effective gear ratios. This contrasts with other mechanical transmissions that offer a fixed number of gear ratios. The flexibility of a CVT with suitable control may allow the input shaft to maintain a constant angular velocity even as the output speed varies.