Catchchee, you need a cog and a lockring, the lockring prevents the cog from working loose. Bring your bike along tomorrow - i'm sure knowledgeable folk will be happy to advise.
@playswellwithotters started
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Catchchee, you need a cog and a lockring, the lockring prevents the cog from working loose. Bring your bike along tomorrow - i'm sure knowledgeable folk will be happy to advise.