Originally Posted by JanMM
I've never had to replace the battery on a mirror. (I have a little mirror on my helmet; I prioritize seeing up ahead and back behind.)
There is no doubt that helmet and eyeglass mounted mirrors work well, but I think this product might appeal to a different segment of the market. Cyclists who use mirrors swear by them and wouldn’t ride without them, but we all know that there are many riders out there who would just never consider trying them.
I have ridden with Evan's Cerevellum prototype and it is nice to briefly glance down and see the camera view in the same location as a standard cyclo-computer. The vibration and positioning issues that some people have with mirrors are not an issue with this product. The accident recording is a nice feature too…even if it is something that none of us really want to think about.
…and even though safety is the primary reason for the Cerevellum, it would also be interesting to see the face of the rider drafting behind you in a race. I am sure the UCI would have some thoughts on that type of use for a product like this.