dubya3":jnhms1sb said:Like others said, the small cog acts as the lock ring. You don't necessarily need two whips though, you can try to use the chain to hold the big cog tight with someone holding the pedal and use the whip on the small cog.
Are you sure it's not a freewheel though? My XC Pro hubs/wheels from 1990-91 use a 7 speed freewheel that is removed with a park tool 4 prong bit.
Tc":2uzf1evz said: