[Thor] sent in an awesome motorized bike build he found coming from the fruitful workshop of [Jim Gallant]. It’s an incredible piece of work built nearly entirely from scratch. [Jim] welded the frame ...

PEKIN — A teen slaps a gas motor he buys online, or takes from an old lawn mower, onto his basic bike’s frame, roars the contraption to life and races down his neighborhood’s streets and sidewalks.

ZF is best known as an automotive technology and supply company, boasting a history of developing both everyday components and cutting-edge innovations like magnet-free motors and regenerative brake ...

This year, Local Motors turned to bikes. In July, it announced the winners of a contest to design “a motorized bicycle reminiscent of the early 1900s board track racers.” Now that it’s chosen several ...

If you think that you've spotted a strangely old-looking motorized bicycle cruising around the streets of Los Angeles, don't worry, you're not hallucinating. What you're likely seeing is one of two ...

The next time you're gasping for breath pedaling on a hill, and your buddy is gliding up it with a big grin, consider that he may be cheating with a teensy motor that slips into the frame of a bike.