Abstract: A hydraulic bicycle brake comprises at least one actuating cylinder and at least one brake cylinder in a cylinder mounting, the brake cylinder being connected to the actuating cylinder by a fluid line, wherein the fluid line opens into a variable-volume chamber in the brake cylinder and the movement of a brake element, for example a brake shoe, is controllable by the variation in volume thereof, characterized in that the brake cylinder rests in the mounting eye of a rotatable mounting element and the latter can be fixed in a preselectible position.