Stock photography, photos: Two men carry mountain bikes Stock photos of Two men carrying their mountain bikes across a log while mountain biking near Truckee, CA. Photograph: © William Stevenson Click for a larger image and more information Keywords associated with this stock photo: mountain biking, biking, bicycle, bike, cycling, bicycling, action, active, effort, energy, liveliness, perseverance, enduring, determination, motivation, strength, strong, challenge, desire, excellence, difficult, adventure, freedom, friends, male bonding, camaraderie, risk, danger, extreme, radical, stream, California, CA, forest, water, carrying, carry, bikes, shoulder, muddy, wet, dirty, mud, dirt, filthy, pond, horizontal, outdoor, outdoors, outdoorsman, outside, sports, sport, sportsman, recreation, recreational, exercise, exercising, physical fitness, two, 2, people, 20s, twenties, Kram, Pres