I have an old ashford, and it needs an overhaul. The metal things that hold the flyer (round, on the maidens) sort of loosen up, and I frequently push them back into place. Sometimes I push too hard, then they are at an angle, everything is too tight, and the wheel becomes hard to treadle. Does any of this make sense? Also maybe the drive band is too tight. There are, I'm sure, a ton of reasons, it's just a matter of finding the right one. Mine is easy to treadle.