Quote Originally Posted by Torrilin View Post
I would like a rearview mirror (or two), a horn, and a bell as tools for riding in traffic. The mirror is the biggie, cause I'm finding I have a hard time looking over my shoulder far enough while maintaining a good line on the road. Horn for communicating with cars. "Hey, dude! No crashing into the bike!" Bell for communicating with pedestrians. "Look behind you!" I'm doing bike == car tho, and you might not be.
With the mirror, make sure you get one that stays in the proper position so it's actually useful. My experience with a handlebar-mounted mirror was that it wasn't worth a hill of beans because it strapped around the bar right where my left hand was..consequently it never stayed put, so I ended up taking it off and have gotten good at doing a look-back so it's not an issue. This may be less of an issue on drop bars; on my group ride yesterday I saw quite a few of the road-bike folks with mirrors and on those bars, you're generally not holding the bar right where the mirror straps on.