So two weekends ago I decided to put in some long miles and travel from Carpentersville to Hebron via the FRT/MPT and the Hebron Trail and then back again. The early morning ride was uneventful and peaceful. I was inspired by a fellow cyclist to start picking up the pace. By the time I got to the Hebron Trail portion of the trip there, I was on record pace for myself. As I turned onto the Hebron Trail, I noticed a bit of headwind and that the hills were starting to take a larger toll on my pedaling. I noticed that I was getting more and more tired as I approached Hebron. Once reaching Hebron, I sure was ready for a break. After a ten minute break, it sure seemed to be easier to pedal back to the MPT/FRT. When I got back to the intersection, I started pedaling South again when I noticed that something was 'pulling' at the bike and slowing it down. I started hearing some rattling coming from the back tire every time I coasted. Every now and again something would pull at the bike. I would look down at the back wheel occasionally. Finally I saw the the rear spoke guard that keeps the derailer out of the spokes was spinning with the tire/rim. When I would coast it would rattle around and jump about. On further inspection I found the little nubs that hold the disk to the spokes had broken off and sometimes the disk of plastic would bind between the hub and the frame of the bike. With all that perceived 'headwind' and tougher 'hills' I had managed to melt a hole in the disk. Hahaha! So by the end of the day I found that if the disk was causing a problem I could just coast to solve the problem. I had gotten in 80+ miles and was going to ride similar the next day. I didn't want to take apart the bike at the time to replace the guard. So I decided to try a Rube Goldberg fix until I had a bit of free time during the next week. I would hot glue the disk to the spokes.