Crunch! I never really liked the sheet metal anchor arm of the AV88 rear hub I've been using, particularly since I had to extend it to reach a stud on the frame. It worked though and I've ignored it. Saturday it came loose, wrapped about 360° around and dragged the chain guard into spokes. It sheared off several spokes, and actually ripped a couple out of the hub flange before the inertia ceased and I skidded to an abrupt stop from about 25 mph. Lesson learned: don't ignore these nagging little things. Now I'm faced with a dilemma, or maybe a challenge depending on how you look at it. I don't really want to use another AV88 hub but the think I liked about it was that the spoke mounting diameter was similar to 21" dirt bike drum hubs so that it can be transplanted into a wheel using the existing spokes. I have a complete drum hub (1970's Suzuki I think) that I took out when I put the wheel together. I've been thinking of a way to bolt a sprocket to it and use it as a rear hub. I've seen disc conversions but I don't think I've seen anyone mount a sprocket to one. I know longer need the sprockets on both sides as the crank pedals are long gone and I don't think they will be returning. I'm not really out anything but my time if it doesn't work. The next thing would be to get a rear wheel drum hub, already designed to attach a sprocket, though I don't know if there are any obstacles to making one fit such as width and sprocket spacing. Here's what I noticed about breaking down on a motorcycle: in less than a minute a motorcycle rider stopped and offered help with tools. I was only a block or so from my house and had to walk back to get some tools to cut the chain guard out of the spokes so it would roll. When I got back to the bike, another motorcycle/rider was waiting to see if he could help, and one or two others in cars stopped to offer help. A couple of weeks ago, while several miles from the house, I threw thew the chain. Within seconds, before I even had time to think about repair options, a guy with a pickup, ramp, and straps stopped, loaded the bike, and had me home in a few minutes. I am amazed how motorcycle riders look out for each other.