Good Waterproof Performance - Closed water-proof design isolates water from your ebike, ensuring safe riding even in rainy days. 14 Inches Explosion-proof Tire - Special texture has strong grip, and the explosion-proof tire can ensure that the tire can still be used normally and safely when it is accidentally punctured. Lightning Design - Lightning appearance design, reducing drag, streamlined appearance, reducing air resistance, accelerating riding. 3 Riding Modes - electric mode, assist mode, manpower mode. Can choose the appropriate mode according to different riding needs. 2-year warranty - free replacement of parts damaged by non-human factors and bear repair costs.