Thanks John - but you do know I'm riding a copy, don't you?

By the way - After reading your remarks this morning, I lowered my seat an inch and guess what - five miles ridden and never a knee twinge..... I hope I am onto something here. The clue to the solution was that when I rode with my left toe pushing that pedal the problem went away, so I think I was over extending the knee joint and irritating a rough patch in that knee. I used to run 25 - 30 miles a week between the ages of about 25 and 44 and although I'm pretty free of aches and pains, I do have a little tendency to notice that knee when say running up a hill, or even walking if it is steep. This isn't a problem, but it was rearing its head more and more on the Strida copy on hills. I think it is solved now though - I hope so, because I am formulating a plan to do some touring riding and pushing the triangle with some luggage on the back.

http://www.bikeforums.net/showpost.p...56&postcount=5