Bicycle hydraulic component

A bicycle hydraulic component comprising:

• a base including
• a hydraulic chamber,
• a first bore having a first bore diameter and being in fluid communication with the hydraulic chamber,
• a second bore extending from the first bore and having a wall and ending at an outer opening in an outer surface of the base and having a second bore diameter greater than the first bore diameter and the second bore diameter ends at the wall, and
• a seat surface having an inner edge defining a circular opening of the first bore and the seat surface extending between the inner edge of the circular opening of the first bore and the wall of the second bore;
• a plug coupled to the second bore and the plug is configured to close the outer opening of the second bore;
• and
• a fluid stopper having a radially outmost surface smaller in size than the diameter of the second bore and the fluid stopper engages with the inner edge of the seat surface and seals the circular opening of the inner edge of the seat surface, the fluid stopper being an individual member with respect to the plug;
• a gap between the exterior surface of the fluid stopper and the wall of the second bore exists when the fluid stopper is positioned on the seat surface;
• the plug presses the fluid stopper onto the seat surface to seal the first bore when closing the second bore.