For Ed and Wyn Masters, bikes have been a part of their lives from the very beginning.

The dirt jumps the brothers built in their New Plymouth, New Zealand backyard served as an incubator for their now-successful careers in downhill and enduro mountain bike racing. It was also where their ever-competitive sibling rivalry sprouted into a life-long journey of heckling, one-upmanship and occasional trips to the emergency room. Add batteries and more power to this rivalry and well, watch the edit and find out…