Royal Enfield has unveiled its new twin-cylinder motor at its Technology Centre in Leicestershire, England. The new motor is an air-cooled parallel-twin unit with a displacement of 648cc. It will power Royal Enfield’s upcoming big bikes, the first of which will be revealed shortly at the ongoing 2017 EICMA. The motor is a completely new unit built from the ground up and shares very little components with RE’s existing engines.