Remove A Bike Wheel’s Cassette
Introduction
The cogs on a bike cassette slide onto a set of splines on the freehub and are held in place by a lock-ring. The cogs usually come in a set, with some bolted together and some loose.
Step 2

Take the wheel off the bike
Remove the wheel.
Step 3

Access bike cassette
Undo the quick release skewer nut, slide the key into the lock-ring, replace the quick-release nut to hold the tool in place.
Step 4

Grab a cog with a chain whip to resist anti-clockwise rotation.
Step 5

With an adjustable spanner turn the key anti-clock wise to loosen the lock-ring.
Step 6

Unscrew the quick-release nut and unscrew the lockring to free the bike cassette. Remove the lock-ring
Step 7

Slide the bike cassette off the freehub.
Pro Tip
If the bike cassette is to be re-used tie it up with string or a cable tie to keep all the cogs and spacers in the correct order.