Mount bike in repair stand and remove rear wheel from bike.
Mountain bike rear sprocket removal.
Engage tool into splines notches.
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Over time as you ride your bike your chain wears down the teeth on the rear sprockets.
Sprockets mount on a splined cylinder on the rear hub called the freehub body.
Modern shifting mechanisms like shimano s hyperglide and sram s powerglide chain and sprocket combination rely on correct alignment of shaped teeth and contoured shift gates in the sprocket.
After you have removed the rear wheel from your bike remove the quick release skewer from the wheel.
Reinstall quick release skewer with skewer nut on outside of remover.
Then insert the cassette lockring remover into your cassette and turn it until it seats.
Mount bike in repair stand and remove rear wheel from bike.
The collection of sprockets is held in place with a lockring.
This post explains the tools needed and the proper procedure of removing rear sprockets of rear wheels that have them.
Tools needed will be listed after the preparation procedures are explained for reasons that will become apparent after reading paragraphs preceding the tool list.
Next remove the skewer which is the rod running through the center of the wheel and insert a lockring removal tool into the center of the cassette.
Inspect freewheel center and select correct removal tool see chart above.
You may need to replace the entire cassette or just one or two of the worn sprockets.
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The smaller sprockets tend to wear quicker than the larger ones.
Normal wear and tear on a bike will eventually require replacement of the sprockets.
Snug skewer nut against remover.
If a standard cassette lockring remover doesn t fit your cassette ask a bike tech for one that will.
If solid axle type use axle nut to hold frewheel tool.
Engage remover into splines notches.
To change a rear cassette on your bike wheel start by removing the rear wheel from the bike.
Install quick release skewer and install skewer nut on outside of remover.
