"Hi Michael, what sort of Avg speed are you wanting? If you are after a club for racing, St Kilda cycle club, Carnegie Caulfield Cycling Club or the Southern Vets (depending on your age) would be best in your area. I ride with one of a few groups out…"
"Hi Jack it is a helmet can but it also comes with extra mounts, I brought mine from http://www.goprosport.com.au/ and they guy there was great to deal with! I will post some photos of how I mounted it on the rear of my bike.Have a look at this site…"