Zero SR\F14.4 SR/F Electric Motorcycle Delivers 190nM Torque and Power. The SR/F delivers 140 ft-lbs (190 Nm) of torque and 110 horsepower with a simple twist of the throttle, thanks to the class-leading power and efficiency of Zero's new ZF75-10 engine and Zero's new lithium-ion Ion battery ZF15.6+ (Premium) kWh. With an upgrade in the Cypher Store, the range and battery capacity can be increased to up to 17.3 kWh.