The Ski-Bike

Most bicyclists who live in snow-prone towns store their bikes for the winter, but not Colin Frater. He built his first Ski-Bike two years ago and perfected his second last December. Version 2.0 is made from a trashed BMX and a pair of $2 skis from the local thrift shop. Frater, a design engineer based in Madison, Wisconsin, searches out the state's biggest hills to take his ride down. "I've had a few different people ride it with varying degrees of success," he says. "Some are chronic foot-draggers, some man up and take it. I like riding it through twisty (cross-country) ski trails or the woods."