Cam Zink successfully landed a 100-foot dirt-to-dirt mountain bike backflip to set a new Guinness World Record at Mammoth Mountain on Aug. 21, 2014.
Tim Konrad is the founder of Unofficial Networks and a passionate skier with over two decades of experience in the ski industry. In 2006, he launched the blog from Lake Tahoe with his brother John, evolving... More by Unofficial Networks