How can I safely perform cassette removal on my bike?

To safely remove a cassette from your bike, you will need a chain whip tool and a cassette lockring tool. First, remove the rear wheel from the bike. Use the chain whip tool to hold the cassette in place while using the cassette lockring tool to loosen and remove the lockring. Once the lockring is removed, carefully slide the cassette off the freehub body. Be sure to keep track of the order of the cassette cogs for reassembly.