Just as carmakers develop electric cars, motorcycle manufacturers also see the writing on the wall, showing off a collection of electric bikes at the 2009 Tokyo Motor Show. The Tokyo Motor Show has always played host to a substantial display of motorcycles, and this year is no different–except that the highlights of the show all have a green angle. Honda, Yamaha, and Suzuki all brought concepts to the show that could spell the future of riding, and possibly a new way for future commuters to get to work.