just fit your wheel and cog and jump on your crank once or twice... no tools required!
This is either misleading or dangerous.
You don't necessarily need a chainwhip (rotafix has been mentioned before) but you do need a lockring tool* (the pedros trixie will be fine although I have the shimano dura ace and think that it is better (more comfortable and more leverage)).#
*You can get away with using a hammer and chisel, apparently, but I think this is a silly idea.
This is either misleading or dangerous.
You don't necessarily need a chainwhip (rotafix has been mentioned before) but you do need a lockring tool* (the pedros trixie will be fine although I have the shimano dura ace and think that it is better (more comfortable and more leverage)).#
*You can get away with using a hammer and chisel, apparently, but I think this is a silly idea.