Double cylinder,cooling water,4-stroke New 2012 tricycle cargo (item:SD650ZH-2(SD800ZH)) DETAILED SPECIFICATION:Engine and transmissionDouble cylinder, ... cooling water,4-strokeBore × stroke76×71Engine displacement644mlStandard net power7.6kw/4800r/minMaximum net torque44N.m/2700r/min~~~3300r/minIgnition systemCDIStartingelectricTransmissionAxleBrakes front ...