I have done three SS1K'ss on a '76 Moto Guzzi Convert. It's not a hard-tail, but the front forks have so much stiction, I never realized what a beating I was taking until I purchased my ST1100. There was stretch of I-69 near Lansing years ago where the road was repaired by removing strips of concrete across the road and the pouring new concrete that absolutely pounded the heck out of me on that old Guzzi.