Zero Motorcycles is gearing up for 2012, and not by stockpiling canned goods and ammunition. The company is refreshing its line of all-electric bikes and adding a host of refinements, including a new powertrain and a battery pack rated to last as long as the motorcycle does (though, whether or not it lives up to that lofty claim in real-world conditions remains to be seen). Of particular interest is the 9kWh configuration of the Zero S, which has an estimated range of 114 miles -- making it the first