Electric racing bike,1).Motor: 180W-350W motor 2).Battery:24V,8AH/10AH, or 36V,8AH/10AH Li-ion battery 3).speed: ... 25km/h Electric racing bike: JSL-038XFSpecification:1).Motor:180W/ ... High speed brushless DC hub intelligent motor 2).Battery: 24V,8AH/10AH, or 36V,8AH/10AH Li-ion battery ... W /G.W: 24.8 / 29 KGS (with 36V,8AH Li-ion battery) 19).Packing size:149 x ...