Curtiss has committed itself to making nothing but electric motorcycles — despite making some of the wildest v-twin bikes you could buy. The Zeus concept is the first hint of what Curtiss' all-electric future will look like. Keeping the styling cues of their previous gas-powered models, the Zeus is billed as the world's first e-twin motorcycle. The details are few, but a 14-kWh battery powers two electric motors that drive a single primary shaft. Curtiss expects to have the production version of the Zeus ready in 2020.