I was riding on it maybe 9 months. My last one lasted a lot longer than that. I put new wheels on that are a lot smoother and made skidding a lot easier a couple of weeks ago, so I was skidding a lot more than back pedaling just because I could. The day it failed, I was being stupid and drunk and heading towards red lights at full bore then pulling really hard, digging, in-the-saddle 6-10 foot skids. It failed on the 5th light...

edit : Not sure I really want to sell that wheel yet - I may have a use for it come next week.