Originally Posted by 11.4
To add to the problems, some cogs are subjected to hardening treatments that gunk the threads up with stuff that prevents them from fitting properly (Suntour Superbe Pro cogs are particularly bad at this). If you use a brass brush and clean out the threads, this problem goes away.
Should I try to "clean" the threads on the new EAI cog from the supposed hardening treatment then? The bad part is that I'll ruin any chances of getting a refund.
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