A green dirtbike? Why not. Zero Motorcyles has made a zippy little machine that looks like a winner.

California-based Zero Motorcycles has come out with a cool new high performance electric sportbike – its got everything but the ear-splitting engine noise, admittedly an attraction for many motorcycle enthusiasts – and the nasty exhaust, which isn’t an attraction for anybody. Last year the company’s Zero X electric dirtbike was a big hit, leading to this street legal upgrade. The Zero S delivers instant torque and power from a standstill and ultra-smooth acceleration, for starters. The bike’s lightweight and rigid twin spar frame is made exclusively of aircraft grade aluminum. – From James list