Yep sounds like it's the cog/lockring, put the cog on, find a hill to go up, get to the top and put the lockring on nice and tight, should do the job.
@mmccarthy started
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Yep sounds like it's the cog/lockring, put the cog on, find a hill to go up, get to the top and put the lockring on nice and tight, should do the job.