Feature: 1. Stainless Steel Material: Electric scooter brake disc uses high quality stainless steel material, strong, wear resistant, durable, long service life. 2. Not Easy to Deform and Fade: The electric scooter brake disc is not easy to be deformed, rust proof and does not fade, and is stable in use. 3. Good Heat Dissipation: Disc brake for Xiaomi Pro reduces the build up of brake dust on the wheels, and air circulates around the brakes to help dissipate heat. 4. Replacement Part: The brake disc is novel in style to protect your scooter, and the electric scooter modification accessories are simple and convenient to install. 5. Fast and Efficient: With ventilated disc brake system, the braking is efficient, the response is fast, and the riding is safer and more worry free. Specification: Item Type: Disc Brake for Xiaomi Pro Electric Scooter Product Material: Stainless Steel Color: As Pictures Shown Weight: Approx. 113g / 4.0oz Disc Brake Disc Size: Diameter: Approx. 135mm / 5.3in Screw Hole Spacing : Approx.25mm / 1.0in (Adjacent Hole) and 40mm / 1.6in (Diagonal) Product Application: for Xiaomi Pro Pro2 Electric Scooter. Package List: 1 x Brake Disc5 x Screw