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Old 09-14-11, 11:15 PM
  #24  
FastJake
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Originally Posted by DJayhawk
Has anyone ever tried taking a angle grinder with a wire wheel to their freewheel to clean off the rust?
I've never actually done this, but it doesn't seem like a bad idea. The wire wheel shouldn't take off much material, which would be the main concern.

Honestly I wouldn't bother. If I come across a rusty freewheel or cassette I just shoot it with WD40. Many of them are brown in color to begin with, so it makes little difference. The surface rust on your sprockets really doesn't negatively affect how they function. More important is how clean they are.

If the freewheel is really that bad (doesn't appear to be in your photo) then no amount of work will revive what the rust has done. At that point, it's time for the trash pile.
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