Yes, it is possible for a motorcycle to have both a clutch and an automatic transmission. Such motorcycles are commonly referred to as "automatic motorcycles" or "semi-automatic motorcycles." These motorcycles provide the convenience of automatic shifting while still offering the option for manual control when desired.
Here's how the combination of a clutch and automatic transmission typically works:
Automatic mode: When the motorcycle is in automatic mode, the rider can simply twist the throttle to accelerate without the need to manually shift gears. The motorcycle's electronic control unit (ECU) or transmission control unit (TCU) manages the shifting process based on various factors such as engine speed, throttle position, and vehicle speed. The clutch is automatically engaged and disengaged by the ECU or TCU to change gears smoothly.
Manual mode: In manual mode, the rider can use a paddle shifter or buttons on the handlebars to manually upshift or downshift gears as desired. The clutch is still present and must be manually operated by the rider to engage or disengage the transmission during gear changes. This gives the rider more control over gear selection and allows for a more engaging riding experience.
The specific mechanisms and technologies used in automatic motorcycles can vary depending on the manufacturer and model. Some automatic motorcycles may use a dual-clutch transmission (DCT) system, which employs two separate clutches to facilitate quick and seamless gear changes. Others may use continuously variable transmissions (CVT) that do not have discrete gears but offer a smooth and continuous range of gear ratios.
Automatic motorcycles with a clutch and automatic transmission are designed to make riding more accessible and easier for those who may prefer not to deal with the complexities of manual shifting or for riders who have physical limitations. It provides the convenience of automatic shifting while still allowing riders to enjoy the control and engagement of a clutch when desired.