New product mountain down hill electric mountain bike: Detailed specification:1, Type:36V250W or 500W2, Color:White and red, white and blue3, Model: TNAEB3650024, Transmission system : 3*8=24speed5, Main material: aluminum alloy6, Net weight: 19 kg7, Rim size: 26 inch8, Power: 36V250W/500W bafang BPM front/rear motor9, Battery capacity: 36V12AH..