Sure, there have been stealthy bikes around here in the past , but the BMC UC01 City Bike takes it to a new level: a carbon belt drive replaces the chain, rendering the bike completely silent to match its black paint job.

What happens when you leave a bike locked to a post on a New York City street? If you answered it goes missing, you'd be right but you might be surprised at how. Instead of being "liberated" in one piece and quickly, the Lifecycle project shows the bicycle and its accessories gradually disappear bit by bit over a year's time.

Good news for anyone dreaming about getting a shiny new Audi for cruising through town, the price of entry has just come down significantly. There is a catch however, because that mid-engined driving force is you.

When I was a kid, I had dynamo powered lights on my bike. They worked great as long as you were moving along, but quickly dimmed if you slowed down or stopped. Now a California company called High Tide Associates...