Electric technology has made a mainstream two-wheel-drive bike a reality. Leaving the super-specialized arena, Robo.Systems Ultra Bike uses a 1,000w hub motor in each wheel large low-pressure tires to make the bike capable of tackling any terrain — including up to three feet of snow. Add the optional floats and the Ultra Bike can even ford streams, all while using a minimum of available battery power. A built-in inverter allows for charging or powering devices while on the go. Robo.Systems is taking orders for the Ultra Bike now.