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Published on Sep 13, 2014
http://electricbikereview.com/stromer... The Stromer ST2 is available in gloss white and matte black, high-step or step-thru as well as multiple frame sizes. It offers a 500 watt direct drive gearless hub motor with 800 watt peak output and regenerative braking. The motor is lighter than on the ST1 by four pounds and the battery size has been increased to 48 volts 17 amp hours. It's a removable pack that's designed to mount right inside the downtube and uses Lithium-ion cells.