Originally Posted by
dvs cycles
It is critical as far as not overtightening. if you under tighten you will probably have the lock ring come loose eventually.
Get a torque wrench.
The lockring probably won't come loose under normal working conditions unless it's really loose to begin with. I put mine on and tighten so that I hear two or three clicks as it engages with the cassette. You can get it on too tight...trust me