EN15194, wheels 26inch, all aluminum parts, motor 250W - 500W brushless, battery lithium-ion or LIFEPO4 36V 10Ah, Shimano 7gear EN15194, wheels 26inch, all ... aluminum parts, motor 250W - 500W brushless, battery lithium-ion or LIFEPO4 36V 10Ah, Shimano 7gears.Write to us to ... 0.9mm cartboard, foam protectionand bubblewrap to assure perfect shipping. 26" 250w city electric bicycle