I was struggling to think of something the Mrs could buy me for Christmas last year and came up with the idea of a bike camera system. After many hours a bit of research I picked the Innovv K3 sytem as a good compromise between size, price & performance. I finally got my finger out and fitted it today. The kit is quite comprehensive and has pretty much everything you need, appart from a number of cable ties & black insulating tape. It's easy enough to fit if you are OK with electrics, but if you take your time most people should be able to manage it.
The brackets are quite delicate, but the cameras are very light so it works OK. Mounting will be trial and error, but I've picked solid anchor points that are as ridgid as possible. Space under the seat may be an issue for some but the tiger has plenty of space to spare, there are a lot of cable 'loops' to tuck away. It all wired up OK but I'm struggling to get the app to connect to my phone. I'll get a good mooch around in the settings to see why they won't talk to each other. In the meantime here's a few pics -