camera for bikes

looking at getting some sort of camera for biking on the road and when we go offroad on dirty bikes…
Been looking here

any hints if any of these are any good? what sort of price should I expect to pay for a decent one?

I use a POV 1 which you can attach to your helmet, superb quality have used it on bike, mountain biking and snowboarding not cheap but well worth it if you can afford one.

I use the VholdR … it’s a complete all in one unit.

Video is good, but the mic is VERY sensitive.

Check my blog in my signature … and you can see 50+ videos for your self!