Since time immemorial, naysayers have painted motorcyles as noisy, fume-spewing nuisances. But sports car manufacturer, Brammo, is set to run these stereotypes off the road with a new super-efficient zero-emission bike that refuels at the socket instead of the pump.

The Enertia charges in less than three hours from any electrical outlet, giving you about 45 miles per charge. It’s amazingly fuel-efficient, roughly 8 times more so than the average car, and almost five time better than a typical motorcycle. And with adjustable power usage, you can squeeze out even better efficiency on slower roads.

The secret is in the Enertia’s carbon fiber chassis, which gives the machine a total weight of just 275lbs. You probably have relatives who weigh more. The simple and slightly retro exterior might not be as butch as a traditional motorcycle, but it’ll still earn you way more respect than scooting around on a Vespa.

If you’re a big time speed demon, the bike’s max of 50mph will be disappointing, though being able to accelerate from 0 to 30mph in 3.8 seconds ain’t bad. And if you’re the type of d*ckwad person who believes that revving a painfully loud engine will make people think you’ve got massive cojones, the ultra-quiet Enertia will probably emasculate poor little overcompensating you.

In short, if you want a mid-life crisis you can drive, go buy a Harley, but if you’re looking for a cheap, efficient, and eco-friendly mode of transportation (that’s still more fun to drive than a car), the Enertia is definitely worth taking for a spin.

link: Enertia Electric Motorcycles ($12,000-$15,000 ships in 2008)