Transmission shafts are components for your Guzzi that are used in the motorbike's transmission and enable power to be transferred from the engine to the rear wheel. There are different types of transmission shafts, such as shift shafts and main shafts, which can be selected depending on the model and make of the motorbike. The transmission shafts must be precisely manufactured and matched to each other in order to function smoothly and achieve optimum performance.