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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 06-22-08, 02:59 PM   #1
mr coffee
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What is that goofy plastic washer?

It looks like a real short tripoded disk and clips onto your wheel hubs. Is it a spacer? Sorry for such a potentially dumb question and no picture...
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Old 06-22-08, 03:01 PM   #2
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You mean The Dork Disc?
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Old 06-22-08, 03:02 PM   #3
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It's a spoke protector. It's function is a back up in the event that you accidentally shift your chain into the spokes.

I don't have them on any of my bikes but I'm pretty picky about keeping everything properly adjusted.
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Old 06-22-08, 03:18 PM   #4
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that makes sense. Last time I messed around with a drivetrain was a looong time ago. It seemed totally useless.
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Old 06-22-08, 03:52 PM   #5
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I'd heard them derided before, but hadn't heard what they're actually for. I guess I'm glad to be a dork, since my wheel doesn't seem to have suffered from my having shifted beyond my largest cog. Funny what a nice drive-side tumble down the trail will do to your derailer adjustment...
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