Originally Posted by
jamawani
I've been touring for 30 years and I am convinced that the rate of knee problems increased dramatically with the rise of clipless pedals for touring.
If so, it's because of improper cleat positioning and not because of the mechanism to attach the feet per se. The same thing can happen with the older-style slotted cleats used with toe-clip pedals.
I have dialed in the cleat position on my SPD shoes and couldn't be happier on tour. Or any other riding I do.