ok, old salty BMW riders- This one is driving me to distraction. I have had my used 2004 R1150RT for about 2 years. I have been riding Japanese bics for about 35 years and have never had this problem. After +200 miles, on a road trip, my knees ache something fierce. I have an after-market seat to allow my feet to reach the ground. I love the bic, but this is taking all the fun out of motorcycling . Could it be the seat? Has anyone else had the "achy knee syndrome"?