$45,000 Will Land You The World's Lightest BikeS

A new road bike will probably cost you a grand or so. It'll also probably weight almost 30 pounds. But this featherweight specimen, made entirely out of carbon fiber, skimps on nothing—and weighs only six. Worth $45,000?

The thing—crafted by Tucson's Fairwheel Bikes—really is a beautiful piece of engineering: titanium spokes, ten-speed rear gear, and a tough, gorgeous carbon frame you could haul around with one hand. You might scoff at the spritely bike—shouldn't racing equipment be tough?—but Fairwheel Bikes has already glided across 20,000 miles of pavement with the prototype, ensuring its durability. [TriRig via DVICE]