Just completely restyle it and quadruple the range and your good to go. http://www.motorcycledaily.com/04august09_zerodualsport.htm
funky stylin ... looks like a dirt bike with messed up sportbike fairing grafted on. Seems like they are trying to keep the radiator shroud styling of modern dirtbikes. I bet they would have better luck if they developed a modern interpetation of the old school air cooled look. No rad ... no rad shrouds needed
I agree with Skid. It's got no radiators, so show that off with a radiator-less design. You're buying that bike because it's NOT the same old liquid cooled combustion engine. Why make it look like it is? I would definitely consider one of those once the range is worked out. And once you can plug in while you're eating lunch on your DS ride.
I guess you'll have to take that smoky old diesel generator with you when you hit the trail with the e-bike! Those Zero's certainly have the tech, but the styling isn't quite there yet. I read a pretty favourable review of one in TBM recently and the only real downsides seem to be the endurance (approx 45 minutes) and the price of a replacement battery (£2300 IIRC - that's about $3800, but it'll be cheaper in the States - everywhere's cheaper than the UK!). Say 500 cycle battery life, that's 375 hours as a very rough guess. Still, this is bleeding edge technology, so as it becomes more commonplace the price should fall and performance will improve.
Until fuel cells, flux capacitor or cold fusion is perfected, I think a hybrid solution might be the best answer. Example; A high performance motor along with a small combustion engine to delivery average power and super capacitors to provide peek power and recover braking energy. With the correct motor there would be no need for gears and the possibilities are endless for features like traction control or perfect wheelie mode. It would also be simple to add a small motor to the front wheel for improved cornering. Maybe I can get some Stimulus money before everyone takes it for building $3 million turtle road crossings.