At the heart of the bike’s hybrid power unit will be a 350cc rotary engine built by Norton legend Brian Crighton, architect of the firm’s racing success in the 1990s and the new 170-hp NRV rotary racer. Crighton’s compact single-rotor engine will be paired with an electric motor derived from a 700-hp electric race car being produced by ex-F1 designer Martin Ogilvie. The complete package weighs just 55 pounds (less than half the weight of a comparable four-cylinder 1000cc engine) while putting out a claimed 160 hp and 150 ft.-lb. of torque. The central output shaft, common to both components, makes for a compact and easily packaged motor. And because the final drive is fully electric, no gearbox is needed. The e-SBK is a “series hybrid,” which means the rotary engine exists purely to supply power to charge the bike’s battery and ultracapacitor, rather than providing any drive directly to the back wheel. The battery efficiently supplies cruising-speed power, while the ultracapacitor deals with demands for rapid acceleration with massive, fast-discharged jolts of electricity.