Amongst many others, we took the Sportscam HD to Louee for some testing. It was mounted on the handlebars with the recording unit also strapped (taped) to the handlebars.

The Sportscam HD camera is a good quality budget full HD camera for video and still shots of great quality. It also has a good sized screen for setting up and reviewing your footage. Its 4 x zoom function is great for setting up specific shots too. 
The camera is very easy to use and set up and comes with a range of mounts as well as two rechargeable lithium batteries.
It also comes with an external microphone, if you need more than its standard audio quality, which is more than acceptable. 
See all the details here sportscamera.com.au/​sports-cam-hd-p-453.html