The Garage Files
Next, use the cassette lockring tool to engage the “teeth” of the
Then, make sure the wrenches are in a comfortable position
with plenty of leverage. Place the wheel on the ground like so.
Then, use the chain whip to steady the cassette, and push down
on the ratchet/crescent wrench to spin the cassette lockring off
If you’ve done it correctly, the lockring will break free, and just a
few counterclockwise turns with your hand will allow the lockring
to come off.
You’re ready to slide the whole cassette off the freehub body
now. Most cassettes come in pieces, so be careful when removing so that you don’t drop or misplace any of the parts.
Cassettes work with a spline system. The inside of the cassette
rings each have “teeth” that are designed to mesh with the outside of the freehub body. Each cog or cassette piece has one
larger tooth that keeps the cassette aligned during reinstallation.
found the “big
tooth,” you can
carefully slide the
back onto the
freehub body one
by one, and use
lockring tool to
lockring back in
Now, use your
ratchet or crescent
wrench to tighten
the lockring. The
torque on this piece
is more than you
can generate with
your fingers but less
than you can make
with the wrench.
Be careful not to