The brake kit shown in the image delivers powerful and reliable stopping performance, ensuring maximum riding safety in both daily commuting and high-speed riding conditions. The brake levers are equipped with built-in motor inhibitors, which instantly cut power to the motor when the brakes are applied, significantly reducing stopping distance and improving rider safety during emergency braking. All Wallke eBikes come with a complete braking system by default. This brake kit is intended only for replacement, upgrade, or maintenance purposes, ensuring your eBike continues to perform at its best over time. 4-Piston Package Includes: 2 × Brake levers with motor inhibitors 2 × Hydraulic calipers 2 × Brake rotors Mounting bolts and screws Additional small fittings and adapters required for installation Important Notes: This brake kit is compatible with all Wallke eBike models, but if you only need a front or rear brake system, please contact customer service before ordering to ensure correct configuration. Professional installation is strongly recommended to guarantee optimal braking performance, safety, and proper alignment. Regular inspection of brake pads, rotors, and hydraulic lines is necessary to maintain consistent and safe braking performance. Avoid riding in extreme weather or harsh conditions if you are unsure about the condition of your braking system. Maintenance & Safety Tips: Check brake responsiveness before every ride Replace worn brake pads promptly to avoid rotor damage Ensure hydraulic lines are free from leaks or air bubbles Keep braking components clean and free from oil, dust, or debris If you have any questions or are unsure about compatibility, feel free to contact our support team. We will help you select the correct brake kit for your Wallke eBike and ensure a safe, smooth, and reliable riding experience.