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Changing Bearings on a BB7 pully wheel?

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819

Monkey
Mar 12, 2003
143
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Has anyone ever changed the bearings on a pully wheel on a Balfa BB7. Mine feels like it's about time to change them.

I pulled it out of the bike and pulled the three screws out of the back. The screws lead me to believe that this is somehow a 2 peice pully. I can't seem to pull it apart. Is it threaded? Does it twist apart?

Any help would be appreciated.

Thanks
 
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