single speed right? provided you have the locking mechinism, (I can't recall if that one was lockring or just one of the cogs), your all set. you just need some spacers to take up the extra space and make things tight
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk