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That little plastic disc that sits between the cassette & spokes on my rear wheel broke a couple of tabs and has come loose. Now it just spins around a bunch and is generally annoying.

What does that thing do? Is it there is keep debris from getting caught in the cassette? Can I just take the d@mn thing off?
Ba-bye. Take it off.

It is supposed to stop the chain from going into the spokes.
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My LBS dude said the same thing
Everytime I have taken my bike to the LBS, he has replaced mine.
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It's not important, but if your chain would happen to go into the spokes... it'd thrash it pretty good.
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It's called a dork disc. Remove it promptly. It's the bicycling equivalent of a pocket protector.
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I thought the reflectors were....
(they have already been removed, BTW)
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Said part has been removed. :wiggle:
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