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Old 04-11-12, 07:42 PM   #7
rain dog
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Join Date: Oct 2009
Location: San Diego
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I had a NR rear derailleur with a set of bullseye pulleys on a bike for a while, seemed to work very well:

Sealed bearings, should last for a while. I believe these were a common upgrade on NR derailleurs, you can still find NOS ones on ebay here and there.
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