Airman 1st Class Brody Schneider, 28th Operations Support Squadron air traffic control technician, inserts a new inner tube into his bicycle tire after popping a tire while mountain biking at Storm Mountain, S.D., June 24, 2012. All Airmen are reminded to perform safety checks on all of their equipment prior to participating in outdoor activities. (U.S. Air Force photo by Airman 1st Class Alystria Maurer/Released)