the explanation was pretty clear to me, slipping when back pressure = cog undoing, slipping when opposite rotation starts = cog doing up again. Jonny and Murt hit the nail on the head. Rotafix/chainwhip the cog on good and tight, but grease the threads first. Then put the lockring on good and tight and greased with a lockring tool/C-spanner
the explanation was pretty clear to me, slipping when back pressure = cog undoing, slipping when opposite rotation starts = cog doing up again. Jonny and Murt hit the nail on the head. Rotafix/chainwhip the cog on good and tight, but grease the threads first. Then put the lockring on good and tight and greased with a lockring tool/C-spanner