a wider cshouldered cog might take up to much space and you can't really put spacers on the hub, you might not be able to get a lock nut on. so best option would be a wider b/b.
@31trum started
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a wider cshouldered cog might take up to much space and you can't really put spacers on the hub, you might not be able to get a lock nut on.
so best option would be a wider b/b.