Kit Standard Hanger

Four hangers come up on a search for my year and model of bike; it's unclear why one would choose one vs. the others. I chose this one only because it's the same as the one already on the bike, but I don't know whether the one on the bike is the best choice. It seems to work...

Works great. The nut had worked its way off the previous hanger while on the trail. I kept the old hanger as a backup should this one get bent.

After a year of riding this was bent just enough that it needed replacing