Hello dear Duc community. I have found out a few problems with my 748R during a ride today. 1. When switching my clutch sometimes bangs really hard, so that you can take the blow even during the ride up into the clutch lever. Now my question, since I have recently installed another racing footrest system with normal circuit (other footrests as well as clutch and brake pedals) and I could only find this problem since then, I wonder now whether my clutch is no longer properly separated (air in the system) or the clutch pads and pulley have slipped in and their position has to be submerged times or if these problems could possibly be caused by a different pedal position. 2. Furthermore, I had to find that my Duc on a comfortable ride partly starts with a turning number of 4000 to 5000 U/min delicately shuffled at the same time. I didn’t have to adjust this problem again on a whole day before. I have to give up very emotional and even gas (even on gradients) they went through at o.g. Speed stopped as they did not get rid of the wheel. I didn’t get rid of this problem even before. I didn’t have to do this problem again on a whole.