I was only doing maybe 20 mph, on my Jamis, bicycle. I face planted when another bicyclist passed me and hooked my front wheel with his rear derailer. No one else was within 50 yards, so I think he was trying to buzz me and misjudged, or intentionally did it. He did not go down. At first he offered to cover the damage to my Jamis and then finked out. In addition to having to replace my then new marvic front wheel, it cost me over $300 in trashed other parts and clothing. Since it was 01-01-07, I actually was wearing a JR mc jacket with armor, and it even got tore up. Worst of all I'm still suffering with damaged nerves through my left shoulder causing numbness in my left arm, and torn tendons in my left elbow. I have not totaled up my medical bills as its still ongoing. I ride bicycles for conditioning and cross-training for motorcycling, and have almost as many near misses and more injuries doing that than 35 years of mc riding! Dam!