Jumping back a few pages, my Powertap's splined cog did manage to loosen itself in 6 weeks/500 miles so if you've got one, do check it.
How? Clearly not using a grafixbyjorj lockring.
@spinnnout started
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Jumping back a few pages, my Powertap's splined cog did manage to loosen itself in 6 weeks/500 miles so if you've got one, do check it.