http://www.bikeforums.net/showthread.php?t=491496
You want a GOOD helmet cam, go here:
http://www.vholdr.com/
$330, but you WILL like it. Or you can spend less and take your chances. Personally, I've spent more money trying to save money than if I just bought good stuff in the first place.
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Work: the 8 hours that separates bike rides.