Details

I show how to replace a cassette on a bicycle wheel. This is my Jamis Comet tri bike. I wanted to install a cassette with lower gearing for the hilly terrain where I live. So I remove the higher geared cassette and install a lower geared cassette.

This is the Pedros lock ring tool I used in the video:
http://www.amazon.com/exec/obidos/ASIN/B000IZBFRE/ref=nosim/rjthebikeguy-20

Park Tool makes one also:
http://www.amazon.com/exec/obidos/ASIN/B000R9ACZC/ref=nosim/rjthebikeguy-20

And this is the Park Tool chain whip that I used in the video:
http://www.amazon.com/exec/obidos/ASIN/B0068OERME/ref=nosim/rjthebikeguy-20

That is actually shop grade tool, so a little pricier. Here is a home shop grade tool here:
http://www.amazon.com/exec/obidos/ASIN/B000OZBKGE/ref=nosim/rjthebikeguy-20