I bought some supposedly real Shimano cleats on some Chinese site based on some info I read here. 4 pairs for $20 (+ free shipping) or something like that. They wore out really fast. I went through 2 sets in less than a year. I got some real cleats to compare and those have been in use about a year and a half with minimal wear so I'm convinced the cheap ones were knock-offs even though the packaging was pretty convincing.