I want to hear your opinions, but be nice guys. Yesterday at the track there is a decent sized step down triple that I was hitting for the better half of the day. Anyways, on the last session, my chain came off once I landed the big trip. Thank god it didn't break my case or cause injury to myself. I don't think my chain was overly tight or loose. It is in good shape (Regina 0RN-6 w/ Iron Man sprockets front and rear). I guess the only maintenance I do is lube it after a wash. My questions are: How often does this happen? What could I do to prevent it? Do I need to do chain maintenance? Do I need a new chain (I recovered the old one)?