Front Brake Master Cylinder with Lever and Hose (QMB / GY6) V9A professional installation is recommended to

professional installation is recommended to ensure the mounting bracket is securely fastened away from high-heat engine components

but avoid over-torquing to protect your headset's threads

Ball-bearing assembly allows torque spring to rotate freely — eliminates spring twist and binding

red and silver

Building on the Stage 1 foundation

Front Brake Master Cylinder with Lever and Hose (QMB / GY6) V9A professional installation is recommended toThis OEM replacement front brake master cylinder assembly comes complete with lever, hose, and brake switch for GY6 and 139QMB style scooters. Compatibility: Fits GY6 & 139QMB style scooters