Increased fuel prices and growing urbanization have spurred the demand for electric bikes, or e-bikes. Global e-bike sales are expected to grow from 32 million in 2014 to at least 40 million in 2023, according to Navigant Research. To meet the growing demand, startups — as well as traditional automakers — are rolling out electric bikes as an alternative form of transport. And many of these new e-bikes also include new innovative features, like the ability to connect to your smartphone via an app.