Regarding energy consumption, I found for a typical gas car, a .05 increase in wt. results in .02 decrease in mileage. All things being equal between a Zero and an Empulse, which they aren't, the added weight alone would reduce mileage by 15% (if they were both gas powered cars). Driving a car at 125 km/h vs. 100 km/h reduces mileage by 20%. Over 55 mph, each 5 mph increase in speed reduces mpg by about 8%. Rapid acceleration decreases mpg by about 30%. None of this bodes well for trying to get good range out of a heavy, fast bike, notwithstanding the 10% bigger battery. Watts/h vs. mpg are different rates but the laws of aerodynamics and bodies in motion are the same.
My Ninja 650r is supposed to get 50+ mpg. The best I can get is 30 mpg...a 40% reduction in range. Can anybody guess why? Unless you are buying an Empulse for your grandmother, you can kiss those range figures goodbye, and why buy a sports bike and ride it like a moped? The real figure I am interested in, is the same thing I asked for with the 2012 Zero, namely, how much range at 80 mph minimum? cause that is highway speed where I live...assuming the speedometer is off by 5 mph making that a real 75 mph minimum. Life in the fast lane in other words, not the truck lane. Comeon Brammo, get the dang bike out so we can see what it does.