There's a destructive method : Unscrew the part with the two holes, take it all apart and stick the last part, the one that is screwed onto the hub, into a vice, turn the wheel around, and you're done. This will destroy the freewheel, however.
http://www.parktool.com/repair/readhowto.asp?id=46
@Pledger started
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There's a destructive method :
Unscrew the part with the two holes, take it all apart and stick the last part, the one that is screwed onto the hub, into a vice, turn the wheel around, and you're done.
This will destroy the freewheel, however.
http://www.parktool.com/repair/readhowto.asp?id=46