The Oregon-based manufacturer Brammo is all set to launch the long awaited street legal version of the Empulse on 8th May 2012. The Empulse is an all-electric naked bike based on the Empulse RR racer that won the 2011 North American TTXGP Championship and has been a ‘regular’ at the Isle of Man TT Zero since 2009.

The video above thoroughly explains the main features of the model, highlights of which are a water cooled engine, a top speed of 100 mph (160 km/h), 100 miles (160 km) of range and the innovative IET 6-speed transmission. This last one in particular stirred up quite a debate over the internet, as many people think there’s no need for such a device on an electric bike and slammed it as a mere commercial gimmick.

Even though some early versions of this bike have been spotted here and there throughout the years, rumor has it that the definitive look of the Empulse is going to be quite different from what we have seen so far. The first images of the Empulse will be released in May, but the official specs of the model will become available only by April 18.