Racoon 2 Wheel Drive Hydrostatic Motorcycle

The bike is powered by 8hp Honda motor. The engine turns a hydraulic pump to create pressurized hydraulic oil. Hydraulic lines send the pressurized hydraulic oil to hydraulic motors mounted at the hubs of both wheels. There is also a small tank to hold extra hydraulic fluid. As you see this bike can go backwards. Yamaha has played with this technology once, entering Paris-Dakar rally in 2004 with Hybrid motorbike; the front wheel driven by hydraulic and the rear with traditional chain.
For more on Racoon and other hydraulic bikes from these guys visit, Hydraulic Innovation