Fingerprint-Activated Electric Bike Goes 40 MPH, 90 Miles on a Charge

09-06-2013 • http://www.wired.com, By Damon Lavrinc

From the same daft minds that brought you the insane, 1,088-horsepower electric Rimac Concept One supercar (which still hasn’t reached production) comes an electric bike that takes the genre to its illogical extreme. The G12 hits a claimed top speed of 40 MPH and can run without any pedal assist for 75 miles in “street mode” before you need to top up the massive 1.3 kWh battery pack — nearly four times more juice than the Specialized Turbo we tested.

While the “street mode” limits output of the electric motor to 12 kW for a maximum speed of 16 MPH, the “speed mode” is where the fun’s at, with Greyp claiming the G12 is just as well suited on a dirt track as a cobblestone street. Custom made aluminum wheels can be fitted with 26 inch Maxxis Hookworm street tires or Bontrager G4 Team knobbies, and while 203mm hydraulic disc brakes are fitted at each end, the motor can suck in 2 kW of power through regeneration.