Motor: High efficiency brushless rear wheel drive 36V/250W Batttery: 36V 10AH Lithium battery Charger: 110V-240V,50/60Hz, auto stop when charging finished Frame: AL-alloy 6061 Brake system: Front disc brake, rear disc brake Derailleur: Shimano external 6 speed gear Tires:24"1.75. Size:1830, 620, 1080 Weight:25kgs.