Almost every one needs a chain whip for removing and installing cassettes. This is the best tool for the job. Park quality will last a lifetime. I had my last Park chain whip for over 30 yrs. passed it along to a friend so I coukd get the newer version and okd one worked just as good as the new one, but I just like shiny bew bicycle tools once in a while.
Gotta have one if you do any kind of changing of gears.
