People change up on parts all the time. I picked up a uo10 because it fit good and I got it for trade on a $.50 bike that was too small. It now has shimano 600 derailers and crank, suntour superbe brakes and levers, sakai custom anatomic bend handle bars, french leather seat with aluminum post. Sure looks like a px10 to me. The wheels are original rigada for now.