Originally Posted by orthoclase
I've found that the only one that stays in place well is CycleAware's Reflex Mirror. I believe Performance Bike carries them, or you can probably save shipping and pick one up at your LBS (better yet).
I'll second that. The Reflex is the way to go for a helmet-mounted mirror.
A helmet mirror does take a bit of getting used to, but once you do, you'll wonder why you ever rode without one.
