I installed Richland Rick's peg lowering kit on my V-650 just before leaving for a 1500 mile ride. I am 6-4 and 35 inseam (a giraffe). Before installing the kit my knees were good for about 2-3 hours before it was Tylenol time. Since installation my knees haven't made a peep and the only discomfort occurs in another portion of my anatomy which is further north of my knees. I highly recommend them to any rider with knee ache. They really work.