Well has this happened to anyone? I was taking off my back wheel to install the 28T pulley. I was backing off the axle nut and in doing so, the threads just peeled off as if the nut was cross-threaded at the factory. I could not believe what was happening. I only have 1400 miles on the bike so I called my local dealer. Since a factory mechanic did not do the work, the dealer had doubts that it would be covered under warranty. The dealer told me to bring it in (the whole bike, not just the axle). So my fingers are crossed hope to save $75 on a new axle.