Make from aluminum alloys, high strength, not easy to rusts. wear resistance, ensures long terms performances. Caliper brakes for efficient and responsive braking, extended life and safe Cycling, great stability. The disc brake systems provide precise and immediate , give you confidence and control while Cycling your electric scooter. The rear brake caliper of the electric scooter is installed on the left side. with mounting screws, . The brake pad of the electric scooter can improve the braking effect of the scooter.