Originally Posted by telenick
Take your rear wheel in hand. Spin the casette. Whirr, clickity clickity. That's the action of a free wheel hub. Cool right? The direction that the casette spins is the direction that the lock ring needs to spin to come off. So the whip holds the casette while you wrench the lock ring off. See?
You don't need the whip to put it back on because the casette engages in the forward direction. IOW, it doesn't free wheel in both directions. Therefore, you can use the leverage of the whole wheel against the torque of the wrench to replace the lock ring. Easy. Right?
Oh okay...I totally understand what you mean now. I didn't realize when you said replace it you meant re-assembly. duhh...my bad