Joined: Feb 2012
Posts: 19,344
Likes: 5,461
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
This is a common challenge at work, keeping the splined (or other) BB cup tool secured on the cup while also reefing on it. I've used the stock arm retaining bolt with washers to hold the tool in the cup. QR skewers, long thin bolts (think AllThread), a Stein tool, a Trek made tool all do this in various situations. All require the BB cup splined tool to also have wrench flats on it's outer surface, not a square drive in the center. Andy.