Balanced Marriage Corbin Dunn and Louise Lovelle; Los Gatos, Calif.

(Photograph by Gabriela Hasbun)

When Corbin Dunn first met his future wife, Louise, he was intrigued by her mountain unicycling; she by his homemade treehouse in a grove of California redwoods. He soon took his tinkering to Apple, where he worked on the first-generation iPhone; she taught aerial silks at the circus. He arrived at their wedding via homemade zipline. "My dad built our house from the foundation up. I'd help him hammer nails," Dunn says. "My parents always encouraged me to build things."

It comes as little surprise, then, that as Dunn picked up Louise's passion for off-road unicycling, he headed into his shop—and emerged with a unicycle for two. Dunn introduced a pair of salvaged Huffy mountain bikes to a Sawzall, a 4.5-inch angle grinder and a MIG welder. After severing the bikes' front halves, he remounted the main drive hub and welded the rear triangles together around the wheel. He reinstalled the sprockets and hubs and put in a pair of chains. "I spent a week trying to machine a special transmission," Dunn says, "but then I realized the stock components would work fine."

So far the 20-pound tandem has been used mainly on special occasions—usually, Dunn admits, for short bursts of time. "We're still learning how to ride it."

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