Joined: Feb 2012
Posts: 19,353
Likes: 5,471
From: Rochester, NY
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
"Should I first tighten the lower ring (with notches) while holding the cup underneath, then tighten the top nut?"
Yes. The lock ring with its 3 notches is not easy to grab with the "common" BB lock ring spanner due to the smaller OD. If you have a hook tool intended for a track hub's lock ring try that as it is made for a smaller diameter than the BB tools are. I'll often just spin the top nut up a bunch and grab the lock ring with a large channel lock type of pliers. Andy
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AndrewRStewart