Hey guys I have a puzzler. My drivetrain has been behaving very strangely. Whenever I put any kind of power down, there is this strange grinding noise which comes from the casette area. Also, periodically the chain will feel like it slips for about 1/4 of a chainring revolution. I replaced the chain, oiled, and adjusted the rear derailleur and the slipping is less prounouced, but the grinding and some slip is still present. It occurs on every chain ring and there doesnt look like any "shark fin" action on any of the rings. One thing I have noticed is the derailleur seems to not rotate as freely and will sometimes seem to get caught and rise up towards the chainstay slightly. It also isnt as effective at holding the chain on the right cog when backpedalling. The cage looks like it may be bent, and I am investigating a replacement now, but does this seem consistent with the symptoms?