A car is still fundamentally a four-wheeled carriage, but it's disingenuous to use that to minimize a century of progress. Today we have bikes that can ride vi

A car is still fundamentally a four-wheeled carriage, but it's disingenuous to use that to minimize a century of progress. Today we have bikes that can ride virtually any terrain, carry hundreds of pounds of cargo, soak 10" bumps at 60mph, ride backwards down vert ramps, accomodate limited-mobility riders, and access enough gears to put you in the right pedal cadence in just about any grade. Yes, it's two wheels, pedals, and a chain. Yes, it's still the diamond-frame safety bicycle. But it has changed.