Crosby Zimmerman started mountain biking at the age of one, and with the support of his parents is ripping up the trail daily. From backyard pump tracks to creating his own terrain in the backcountry, we definitely need to keep an eye on this kid!
Crosby Zimmerman started mountain biking at the age of one, and with the support of his parents is ripping up the trail daily. From backyard pump tracks to creating his own terrain in the backcountry, we definitely need to keep an eye on this kid!