All American Birkebeiner coverage is brought to you through the generous support of SkiErg. The reflective crossing-guard vest and orange hat peeking out beneath his helmet made him unmistakable. Steve Clark was that guy pedaling between Cable and Hayward, Wis., last week, looking like a vagabond out there weathering the elements on his bicycle. Those that stopped to take his picture could have heard his story. A closer glance revealed he was toting a pair of...