I do aviation videos and now my son is deep into downhill and freeriding. I have Viosport helmet cams and now they are used more on the biking than aircraft! At my web site www.kbvp.com , I have some biking video up and also shots in the photo galley. I have been into video($$$) since 1983, but Mountain biking is new. Give a look at some of the videos and photos and let me know what you think.