I had one of these and it did this for months, I was constantly adjusting. Finally I brought it to the shop where I bought the wheel, and they couldn't get it right either. They replaced the hub internals under warranty. Shortly after that, I sold the bike. Fast forward almost a year--I ran into the guy I sold it to, and told me he had to have the hub internals replaced again. From my experience, these SA 5 speed hubs are really unreliable.