Hmph. When I look at those pics I'm not sure what I'm looking at. The break is so clean I can't tell what it is supposed to look like.

I guess FW's break occasionally. My sweetie and I did this on the tandem:

http://world.std.com/~muller/pics/sprockets.jpg

And I had a FW come apart on my commute home one afternoon, did the last 14 miles in a truck with AAA on the side.

http://users.rcn.com/jimmuller/pics/BustedFreewheel.jpg

Jim, the main body broke around the circumference right at the outer bearing point. The lockring stayed threaded to it, thereby retaining those bearings. When the FW cogs/carrier began moving around on the stationary body the grinding alerted me to the problem. I didn't actually feel the body break, probably because I'd just passed over a couple expansion joints on the small bridge I crossed just prior to the incident.

DD