Motorcycle Brake Pump Front Rear Disc Brake Master Cylinder Hydraulic Pump Lever For Scooter Niu N1 N1S MQI+ UQI+ US U1 This brake pump is designed for front and rear disc brake systems on.It features a hydraulic master cylinder with an integrated lever mechanism to provide consistent braking performance.Compatible with models including Niu N1, N1S, MQI+, UQI+, US, and U1, the unit supports installation and within the existing brake setup.Constructed for , it functions as a direct replacement for worn or damaged master cylinders.The design allows for efficient fluid transfer and responsive lever feel during use.