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SilentHawk is an all-wheel drive, hybrid-electric military bike designed for the United States Armed Forces.The bike, currently in its prototype stage, is being developed by Fairfax, Virginia-based contractor Logos Technologies with the aid of a Small Business Innovation Research (SBIR) award from the Defense Advanced Research Projects Agency (DARPA). [1]
Since electric motorcycles and scooters have relatively small frames, they typically have short ranges, restricted by the volume available for energy storage. [42] Most electric motorcycles and scooters are powered by rechargeable lithium ion batteries, though some early models used nickel–metal hydride batteries.
In 2014, three motorcycle enthusiasts in China. [1] In March 2018 they launched their first model, the LBX, a light-weight electric dirt bike. [2]In 2014, three motorcycle enthusiasts in USA. [3]
The older version had a 36-volt, 0.8 kW motor and in 1990 a 2.5 kW motor with three 80 Ah lead acid batteries, a 40 km/h (25 mph) (Series1) to 55 km/h (34 mph) (Series2 and up) top speed and a range of 60 to 70 km (37 to 43 mi) (Series1) or 40 to 50 km (25 to 31 mi) (Series2). The consumption from Series2 and up was 7 to 9 kW·h/100 km.
Zero Motorcycles has had success racing at Pikes Peak. Zero has won the production electric motorcycle class in 2013, 2014, and 2015. [23] [24] In 2014 a Zero FX was the first production electric motorcycle to break the 12 minute mark. [25] In 2012, Brandon Miller set a Bonneville Land Speed Record on a Zero S ZF6 model. [26]
These bikes typically have simple, boxy tube frames, small wheels, and are often built with some parts repurposed from Go-Karts, dirt bikes, or gas-powered tools. Bikes built this way can range from underpowered machines running on lawnmower motors up to extremely powerful ones capable of speeds up to 100 miles per hour.