You can go off-roading and bomb hills with Stealth Electric Bikes' appropriately named B-52, capable of a top speed of about fifty miles per hour, thanks to a 5.2kW DC brushless engine that drives power through a 9 speed sequential gearbox. A motocross inspired frame has 250mm of rear wheel travel, paired with a 200mm front end and Magura hydraulic disc brakes for sure stopping. Slowing or stopping activates the Regen braking, which converts kinetic energy into electrical energy, which is then fed back into the battery pack. Speaking of which, the advanced lithium battery has a range of about 50 miles, with recharging time rated at two hours. Find out more at stealthelectricbikes.com.