I had this happen on my old ZZR250 when i was first starting biking. Didnt think it would have happened on a newess bike. Do you use a power washer to wash your bike. As using high pressure water or the seals of any bearing is not good and it pushs past them and blasts out the grease meaning over time they rust/cease up and then bang let go and leave you in the middle of no where.
If you put your bike on the centre stand or riase your rear wheel off the ground with out putting any pressure on the rear suspension. You then try and move your rear wheel vertically up or down, there should be no free play (ie easy up and down movement) as it should be compressing the rear suspension. When the bearing goes it means the first for centimeters of movement is the play within the broken bearing before your rear supension kicks in.
If youve sideways movement in your wheel it sounds like its a wheel bearing had broken, had a few of these go on me too
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