Locking hydraulic brake system

A locking motorcycle master cylinder assembly comprising:

• a) a motorcycle master cylinder containing hydraulic fluid and having an opening adapted for securing a brake line for operating a motorcycle front brake;
• and
• b) a locking mechanism comprising:
• i) a housing having an internal bore, an inlet port in fluid communication with said internal bore, a passage in fluid communication with said inlet port, and an outlet port in fluid communication with said internal bore and with the brake line;
• ii) a reciprocating piston movable within said internal bore;
• iii) a ring-type seal coupled to said reciprocating piston for sealing said internal bore and preventing a flow of the hydraulic fluid between said inlet port and said outlet port;
• iv) a locking lever coupled to said reciprocating piston for actuating said reciprocating piston;
• and
• v) a fastener securing said housing directly to said motorcycle master cylinder, wherein said fastener is secured in the opening in said motorcycle master cylinder adapted for securing the brake line, and said fastener has an internal fluid passage for providing fluid communication between said passage and said motorcycle master cylinder;
• wherein said locking lever is moveable between a first position, wherein the hydraulic fluid can flow freely between said motorcycle master cylinder and the brake line for engaging and disengaging the motorcycle front brake and a second position, wherein the hydraulic fluid is prevented from returning to said motorcycle master cylinder for maintaining the motorcycle front brake in an engaged state.