Joined: Nov 2006
Posts: 3,391
Likes: 1
From: duluth
Bikes: '07 Pista, '09 Fantom Cross Uno, '8? Miyata, '67 Stingray, '0? Zoo mod trials, Tallbike, Chopper, '73 Schwinn Collegiate, '67 Triumph Chopper, '69 CB350, '58 BSA Spitfire, '73 CB450
Grease threads, screw cog on carefully, tighten with chainwhip or mash up a hill to set it. Then install lockring, which is reverse threaded on the smaller set of threads and tighten with lockring tool.
The other side with "one size" threads is for a freewheel.
Then check cog and lockring before every ride for a week or so.