These matching pair of axial brake master cylinders are perfect for any scooters! Most common scooters have CVT automatic aka twist-n-go transmissions. Once the engine rev goes up, the bike will go, making it dangerous for the bike to idle with the kickstand down. The bike could potentially inch forward causing the kickstand to pop up and down goes your ride! These universal master cylinders have parking brake on both front and rear brakes! Will bolt onto any 7/8" handle bars! Brake light switches are included!