If you anticipate that one day you will need to remove a freewheel from the hub it is on, there is one tip to help with that. Grease all points that it is in contact with the hub. Applying grease will save you time and prevent damage to the freewheel and hub during removal. Grease the hub threads and the back of the freewheel. The back of the freewheel comes in contact with the hub and can be a seizing point if not greased. Spin the freewheel on and it will tighten up during your first few cranks when your wheel is installed and chained up. Always take your rear wheel to the local shop to remove the freewheel unless you own an appropriate removal tool.