why would you want to remove it..
On my hybrid I have the end stops on the mech set perfectly, but somehow the chain still occasionally manages to jump the big sprocket and go down between the sprocket and the spokes. This seems to be when trying to engage bottom gear on very steep climbs when the chain is under considerable tension. I suspect the hanger is deflecting enough to allow the over shift. I have actually fitted a spoke protector because of this.
Because they are naff.Correctly set up mechs never jump into the spokes.
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I wouldn't bother to fit one when building up a new wheel but wouldn't bother to remove it from an existing wheel either. It can do no harm.