The claimed fix-all for unclogging road traffic sounds brilliant, but here’s why the idea could face considerable headwinds.

Safety Wheel Drive is an innovative all-in-one solution combining a wheel, gearbox, motor, safety encoder and safety drive.

A smaller, lighter and more energy-efficient computer, demonstrated at the University of Michigan, could help save weight and ...

We’ve tested dozens of electric bikes in every category—commuter, cargo, cruiser, folding, mountain, and city. These are our ...