To improve the degree of freedom with which an ABS hydraulic unit is attached to a handlebar, an ABS hydraulic unit includes a main housing that has at least part of a hydraulic circuit formed inside and is equipped with a mounting portion for mounting a brake lever and an attachment portion having at least part of a side surface of a through hole formed along a first direction, the through hole being for attaching the ABS hydraulic unit to a handlebar. The ABS hydraulic unit also includes a master cylinder that has a piston portion that moves in conjunction with the brake lever, the master cylinder being for increasing, with the movement of the piston portion, the pressure of brake fluid inside the hydraulic circuit. A piston insertion hole that extends in the moving direction of the piston portion and is for inserting the master cylinder is formed in the main housing along a second direction that intersects, but is not orthogonal to, the first direction.

A normally closed port valve seals a hydraulic hose connection port of a hydraulic bicycle component. Connection of an end of a hydraulic hose assembly to the port opens the valve, placing the assembly's hydraulic fluid chamber in fluid communication with the interior of the hose assembly. A hydraulic cylinder of the assembly is in fluid communication with the chamber. A spring may be used to bias the valve to a closed condition and simultaneously to bias a brake actuating piston to a non-actuated position.

A bicycle operating device is basically provided with a base member, a first operating member and an attachment. The base member has an interior space that is configured to receive an operating unit. The first operating member is configured to move along a first operating path from a rest position to an operated position to operate the operating unit when the operating unit is disposed in the interior space. The attachment blocks the first operating path to prevent movement of the first operating member from reaching the operated position.

A bicycle operating device is basically provided with a base member, a first operating member and an attachment. The base member has an interior space that is configured to receive an operating unit. The first operating member is configured to move along a first operating path from a rest position to an operated position to operate the operating unit when the operating unit is disposed in the interior space. The attachment blocks the first operating path to prevent movement of the first operating member from reaching the operated position.

A bicycle operating device comprises a base member, an operating member, and a hydraulic unit. The operating member is pivotally coupled to the base member about a pivot axis. The hydraulic unit is provided on the base member and comprises a hydraulic cylinder, a piston, and a hydraulic reservoir. The hydraulic cylinder includes a cylinder bore being at least partly provided above the pivot axis in a mounting state where the bicycle operating device is mounted to a bicycle. The piston is movably provided in the cylinder bore. The cylinder bore and the piston define a hydraulic chamber. The hydraulic reservoir includes a reservoir chamber connected to the hydraulic chamber. The reservoir chamber is provided above the cylinder bore without overlapping with the cylinder bore in a transverse direction parallel to the pivot axis in the mounting state.

A bicycle operating device comprises a base member, an operating member, and a hydraulic unit. The operating member is pivotally coupled to the base member about a pivot axis. The hydraulic unit is provided on the base member and comprises a hydraulic cylinder, a piston, and a hydraulic reservoir. The hydraulic cylinder includes a cylinder bore being at least partly provided above the pivot axis in a mounting state where the bicycle operating device is mounted to a bicycle. The piston is movably provided in the cylinder bore. The cylinder bore and the piston define a hydraulic chamber. The hydraulic reservoir includes a reservoir chamber connected to the hydraulic chamber. The reservoir chamber is provided above the cylinder bore without overlapping with the cylinder bore in a transverse direction parallel to the pivot axis in the mounting state.

A bicycle operating device comprises a base member and an operating member. The base member includes a hydraulic-unit attachment part to which a hydraulic unit is to be attached, and a first end portion to be mounted to a handlebar. The operating member is movably coupled to the base member. The operating member includes a first wire attachment part to which a first wire end of a control wire is to be attached.

A bicycle operating device comprises a base member, a hydraulic cylinder, a piston, and a fluid passageway. The base member is configured to be mounted to a bicycle. The hydraulic cylinder is provided on the base member and includes a cylinder bore. The piston is movably provided in the cylinder bore. The cylinder bore and the piston define a hydraulic chamber. The fluid passageway is connected to the hydraulic chamber. The fluid passageway is provided inside the base member. The fluid passageway has a length longer than a stroke of the piston.

A bicycle operating device comprises a base member, a hydraulic cylinder, a piston, and a fluid passageway. The base member is configured to be mounted to a bicycle. The hydraulic cylinder is provided on the base member and includes a cylinder bore. The piston is movably provided in the cylinder bore. The cylinder bore and the piston define a hydraulic chamber. The fluid passageway is connected to the hydraulic chamber. The fluid passageway is provided inside the base member. The fluid passageway has a length longer than a stroke of the piston.

A product may include a steering tube that may have a first component, and a second component. A hinge may be connected to enable the first and second components to fold relative to one another so that the steering tube is foldable. A latch may secure the first and second components in an unfolded position. The first and second components may be locked in a folded position. The latch may include a lever that has a latch hook. The first and second components may be secured through engagement of the latch hook with a striker.