The Sattelstürtze is the first to actually manages to cushion crude and lighter shocks well. Has only been 2 weeks in use, but the joints cause appears to be that the desired effect persists permanently - and not, as at two other products previously, where after a short time clamp the guide surfaces of the suspension or simply slow down. The only downside of this support has already been mentioned by others: the seat-focus is shifted slightly to the rear, also "absorbs" the support to back, as she rolls rather to the seat tube as springs. But it is an effective principle and see how and where the wear sometime - hopefully in the distant future - begins. Overall, therefore, really recommended!