fordmike65
Riding a '37 Colson Imperial
Wanted to swap out the 9t rear cog on my girl's '40 Twinflex to a 10t for easier riding on this portly broad. I took @rustjunkie's advice and it worked like a charm. Thanks bud!
If wheel/hub is out of frame:
Loosen lock ring (it has a reverse thread) just a bit.
Put hub or wheel into frame or bike with a crankset and chain on it.
Attach brake arm to brake arm strap, tension chain, tighten brake arm strap nut/bolt and axle nuts.
Apply the brake with controlled leverage.
Cog will break free, stopped by lock ring.
Remove wheel/hub from bike/frame.
remove lock ring.
remove cog.
If the wheel is already in the bike, you can loosen the lock ring a bit without removing the wheel.