Motorcycle Brake Master Upper Pump Fit For Gy6 50 50cc 139qmb Scooter Designed as a direct replacement for worn or damaged parts it delivers reliable braking power for enhanced riding safety. Easy Installation:Designed for a hassle-free setup, ensuring a quick and straightforward installation It effectively avoids functional failure caused by harsh external environments. It retains stable working efficiency after long-time continuous operation., Manufacturer: NADCFN