I've had a 13-32 7sp on a bike for four years and it works great. Recently I purchased a 14-34 6sp for another bike. When I checked it, it didn't have that typical ratcheting sound! I called the IRD distributor and was told that was normal. WHAT? When I objected, they sent me another freewheel that checked out the same as the first. I was told not to return the first one. When I called them back, I asked whether the freewheels they sent might be part of the VERSION ONE SERIES OF A FEW YEARS AGO THAT HAD UNACCEPTABLE FAIL RATES. They didn't answer my question directly. I still have the two 14-34 freewheels that I don't really trust.