Rear Hydraulic Brake Master Cylinder Pump Fit For Kayo Bosuer BSE NC250 250cc Dirt Bike Designed as a direct replacement for worn or damaged parts it delivers reliable braking power for enhanced riding safety. Product description: easy installation, good sealing, flexible hole spacing, high compatibility Whisper-quiet running: lowers brake-related noise, creating a smoother and more enjoyable driving experience Product specs: tool-free quick installation, reliable sealing, adaptable hole spacing, great compatibility with most models, Manufacturer: HAYSXVR