GoPro – Polar Pro Filters External Microphone-Professional Edition GoPro® Hero2 & Hero3 (http://www.polarprofilters.com/shop/gopro-microphone-professional/)

I was looking for better sound from my GoPro as I use it a lot as a general video camera as well as a sports camera.

I found a Polar Pro mic at the local Camera House and the price was comparable to the web so I bought it. The extension cable that it come with didnt work (broken wire) so I bought another from JB HiFi for $12. I didnt bother replacing it as it would have been the same cheap crap.
Its the "Dead Mouse" pro version. Having the fluffy cover is a must on the bike as it basically eliminate all wind noise.

I put together a short video so you can see the difference in the sound quality. My bike is a cruiser with Cobra pipes and is quite loud. But obviously it wouldn't matter what bike you had when you can hear it clearly it makes for a better video.

I tucked it behind the number plate for this test.

Equipment
GoPro HD2
Skeleton housing
3.5mm extension cable (3 meters)
Polar Pro Mic
V-Star 1100

My Video and sound test below

Polar Pro external mic test on motorcycle - YouTube (http://www.youtube.com/watch?feature=player_detailpage&v=g_hFxXx3L7A)

Nice test there Justin. might keep this one in mind. :)