The Stealth Bomber Electric Bike from Sweden
Ultra-powerful electric bike with nine pedal speeds using an internal gearbox in the bottom bracket. Top speed of 50 miles per hour with a 1.5 kwh battery pack and 4,500 watt motor. Long travel front and rear suspension to soak up bumps and jumps, this thing is more motocross than ebike.
(Source: https://www.youtube.com/)