You know the spoke-protector behind the cassette mentioned in this thread? I busted mine climbing a hill doing some single track yesterday. The chair slipped behind the cassette, and it was all kinds of messed up. In the above mentioned thread, one forum member suggests that you don't need it. I wanted to pick a few more of your brains and ask, "Am I better off without this thing?" Whuddya think? I want to get into XC Racing, and I wasn't really thrilled how this busted, non-essential part pretty much crippled my bike.