Is that one of these
Hedcamz cameras?
How do you rate it? Can it be mounted on handlebars?
For the size it's good. Battery life is about 1h30, so you do need to keep it topped up. Fine as a commuting camera though.
It automatically overwrites the older files as the card gets full, so you don't need to remember to delete off the old files (I really with my Contour did this)
Picture quality is decent for the size. Check here for example:
View: https://www.youtube.com/watch?v=xN5RLTzFlZI
Not sure how it copes with low light yet.
It comes with various mounts, so you'll definitely be able to mount it to the bars.
I think (not 100% sure) that it's possible to charge it while it's recording, so if you were feeling technical you could hook up an external USB battery to boost the life.